From: SF Markus Elfring <elfring@users.sourceforge.net> To: kernel-janitors@vger.kernel.org, Alexandre Bounine <alexandre.bounine@idt.com>, Matt Porter <mporter@kernel.crashing.org> Cc: LKML <linux-kernel@vger.kernel.org> Subject: [PATCH 2/7] rapidio: Adjust 12 checks for null pointers Date: Fri, 15 Dec 2017 11:30:15 +0100 [thread overview] Message-ID: <739f9f1c-3ebe-c21b-c5e2-31976cfbc0ee@users.sourceforge.net> (raw) In-Reply-To: <f6e4d185-2c9d-a31d-793d-bda521c450ea@users.sourceforge.net> From: Markus Elfring <elfring@users.sourceforge.net> Date: Thu, 14 Dec 2017 15:27:07 +0100 MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit The script “checkpatch.pl” pointed information out like the following. Comparison to NULL could be written … Thus fix the affected source code places. Signed-off-by: Markus Elfring <elfring@users.sourceforge.net> --- drivers/rapidio/rio.c | 18 +++++++++--------- 1 file changed, 9 insertions(+), 9 deletions(-) diff --git a/drivers/rapidio/rio.c b/drivers/rapidio/rio.c index 032ede23a8cb..f89085564c2c 100644 --- a/drivers/rapidio/rio.c +++ b/drivers/rapidio/rio.c @@ -243,7 +243,7 @@ int rio_request_inb_mbox(struct rio_mport *mport, int rc = -ENOSYS; struct resource *res; - if (mport->ops->open_inb_mbox == NULL) + if (!mport->ops->open_inb_mbox) goto out; res = kzalloc(sizeof(struct resource), GFP_KERNEL); @@ -326,7 +326,7 @@ int rio_request_outb_mbox(struct rio_mport *mport, int rc = -ENOSYS; struct resource *res; - if (mport->ops->open_outb_mbox == NULL) + if (!mport->ops->open_outb_mbox) goto out; res = kzalloc(sizeof(struct resource), GFP_KERNEL); @@ -632,7 +632,7 @@ int rio_request_inb_pwrite(struct rio_dev *rdev, int rc = 0; spin_lock(&rio_global_list_lock); - if (rdev->pwcback != NULL) + if (rdev->pwcback) rc = -ENOMEM; else rdev->pwcback = pwcback; @@ -975,7 +975,7 @@ rio_chk_dev_route(struct rio_dev *rdev, struct rio_dev **nrdev, int *npnum) rdev = rdev->prev; } - if (prev == NULL) + if (!prev) goto err_out; p_port = prev->rswitch->route_table[rdev->destid]; @@ -1054,7 +1054,7 @@ rio_get_input_status(struct rio_dev *rdev, int pnum, u32 *lnkresp) RIO_MNT_REQ_CMD_IS); /* Exit if the response is not expected */ - if (lnkresp == NULL) + if (!lnkresp) return 0; checkcount = 3; @@ -1696,7 +1696,7 @@ int rio_route_add_entry(struct rio_dev *rdev, spin_lock(&rdev->rswitch->lock); - if (ops == NULL || ops->add_entry == NULL) { + if (!ops || !ops->add_entry) { rc = rio_std_route_add_entry(rdev->net->hport, rdev->destid, rdev->hopcount, table, route_destid, route_port); @@ -1749,7 +1749,7 @@ int rio_route_get_entry(struct rio_dev *rdev, u16 table, spin_lock(&rdev->rswitch->lock); - if (ops == NULL || ops->get_entry == NULL) { + if (!ops || !ops->get_entry) { rc = rio_std_route_get_entry(rdev->net->hport, rdev->destid, rdev->hopcount, table, route_destid, route_port); @@ -1797,7 +1797,7 @@ int rio_route_clr_table(struct rio_dev *rdev, u16 table, int lock) spin_lock(&rdev->rswitch->lock); - if (ops == NULL || ops->clr_table == NULL) { + if (!ops || !ops->clr_table) { rc = rio_std_route_clr_table(rdev->net->hport, rdev->destid, rdev->hopcount, table); } else if (try_module_get(ops->owner)) { @@ -1889,7 +1889,7 @@ struct dma_async_tx_descriptor *rio_dma_prep_xfer(struct dma_chan *dchan, { struct rio_dma_ext rio_ext; - if (dchan->device->device_prep_slave_sg == NULL) { + if (!dchan->device->device_prep_slave_sg) { pr_err("%s: prep_rio_sg == NULL\n", __func__); return NULL; } -- 2.15.1
WARNING: multiple messages have this Message-ID (diff)
From: SF Markus Elfring <elfring@users.sourceforge.net> To: kernel-janitors@vger.kernel.org, Alexandre Bounine <alexandre.bounine@idt.com>, Matt Porter <mporter@kernel.crashing.org> Cc: LKML <linux-kernel@vger.kernel.org> Subject: [PATCH 2/7] rapidio: Adjust 12 checks for null pointers Date: Fri, 15 Dec 2017 10:30:15 +0000 [thread overview] Message-ID: <739f9f1c-3ebe-c21b-c5e2-31976cfbc0ee@users.sourceforge.net> (raw) In-Reply-To: <f6e4d185-2c9d-a31d-793d-bda521c450ea@users.sourceforge.net> From: Markus Elfring <elfring@users.sourceforge.net> Date: Thu, 14 Dec 2017 15:27:07 +0100 MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit The script “checkpatch.pl” pointed information out like the following. Comparison to NULL could be written … Thus fix the affected source code places. Signed-off-by: Markus Elfring <elfring@users.sourceforge.net> --- drivers/rapidio/rio.c | 18 +++++++++--------- 1 file changed, 9 insertions(+), 9 deletions(-) diff --git a/drivers/rapidio/rio.c b/drivers/rapidio/rio.c index 032ede23a8cb..f89085564c2c 100644 --- a/drivers/rapidio/rio.c +++ b/drivers/rapidio/rio.c @@ -243,7 +243,7 @@ int rio_request_inb_mbox(struct rio_mport *mport, int rc = -ENOSYS; struct resource *res; - if (mport->ops->open_inb_mbox = NULL) + if (!mport->ops->open_inb_mbox) goto out; res = kzalloc(sizeof(struct resource), GFP_KERNEL); @@ -326,7 +326,7 @@ int rio_request_outb_mbox(struct rio_mport *mport, int rc = -ENOSYS; struct resource *res; - if (mport->ops->open_outb_mbox = NULL) + if (!mport->ops->open_outb_mbox) goto out; res = kzalloc(sizeof(struct resource), GFP_KERNEL); @@ -632,7 +632,7 @@ int rio_request_inb_pwrite(struct rio_dev *rdev, int rc = 0; spin_lock(&rio_global_list_lock); - if (rdev->pwcback != NULL) + if (rdev->pwcback) rc = -ENOMEM; else rdev->pwcback = pwcback; @@ -975,7 +975,7 @@ rio_chk_dev_route(struct rio_dev *rdev, struct rio_dev **nrdev, int *npnum) rdev = rdev->prev; } - if (prev = NULL) + if (!prev) goto err_out; p_port = prev->rswitch->route_table[rdev->destid]; @@ -1054,7 +1054,7 @@ rio_get_input_status(struct rio_dev *rdev, int pnum, u32 *lnkresp) RIO_MNT_REQ_CMD_IS); /* Exit if the response is not expected */ - if (lnkresp = NULL) + if (!lnkresp) return 0; checkcount = 3; @@ -1696,7 +1696,7 @@ int rio_route_add_entry(struct rio_dev *rdev, spin_lock(&rdev->rswitch->lock); - if (ops = NULL || ops->add_entry = NULL) { + if (!ops || !ops->add_entry) { rc = rio_std_route_add_entry(rdev->net->hport, rdev->destid, rdev->hopcount, table, route_destid, route_port); @@ -1749,7 +1749,7 @@ int rio_route_get_entry(struct rio_dev *rdev, u16 table, spin_lock(&rdev->rswitch->lock); - if (ops = NULL || ops->get_entry = NULL) { + if (!ops || !ops->get_entry) { rc = rio_std_route_get_entry(rdev->net->hport, rdev->destid, rdev->hopcount, table, route_destid, route_port); @@ -1797,7 +1797,7 @@ int rio_route_clr_table(struct rio_dev *rdev, u16 table, int lock) spin_lock(&rdev->rswitch->lock); - if (ops = NULL || ops->clr_table = NULL) { + if (!ops || !ops->clr_table) { rc = rio_std_route_clr_table(rdev->net->hport, rdev->destid, rdev->hopcount, table); } else if (try_module_get(ops->owner)) { @@ -1889,7 +1889,7 @@ struct dma_async_tx_descriptor *rio_dma_prep_xfer(struct dma_chan *dchan, { struct rio_dma_ext rio_ext; - if (dchan->device->device_prep_slave_sg = NULL) { + if (!dchan->device->device_prep_slave_sg) { pr_err("%s: prep_rio_sg = NULL\n", __func__); return NULL; } -- 2.15.1
next prev parent reply other threads:[~2017-12-15 10:35 UTC|newest] Thread overview: 18+ messages / expand[flat|nested] mbox.gz Atom feed top 2017-12-15 10:26 [PATCH 0/7] RapidIO: Adjustments for some function implementations SF Markus Elfring 2017-12-15 10:26 ` SF Markus Elfring 2017-12-15 10:28 ` [PATCH 1/7] rapidio: Delete an error message for a failed memory allocation in rio_init_mports() SF Markus Elfring 2017-12-15 10:28 ` SF Markus Elfring 2017-12-15 10:30 ` SF Markus Elfring [this message] 2017-12-15 10:30 ` [PATCH 2/7] rapidio: Adjust 12 checks for null pointers SF Markus Elfring 2017-12-15 10:31 ` [PATCH 3/7] rapidio: Adjust five function calls together with a variable assignment SF Markus Elfring 2017-12-15 10:31 ` SF Markus Elfring 2017-12-15 10:32 ` [PATCH 4/7] rapidio: Improve a size determination in five functions SF Markus Elfring 2017-12-15 10:32 ` SF Markus Elfring 2017-12-15 10:34 ` [PATCH 5/7] rapidio: Delete an unnecessary variable initialisation in three functions SF Markus Elfring 2017-12-15 10:34 ` SF Markus Elfring 2017-12-15 10:35 ` [PATCH 6/7] rapidio: Return an error code only as a constant in two functions SF Markus Elfring 2017-12-15 10:35 ` SF Markus Elfring 2017-12-15 10:36 ` [PATCH 7/7] rapidio: Move 12 EXPORT_SYMBOL_GPL() calls to function implementations SF Markus Elfring 2017-12-15 10:36 ` SF Markus Elfring 2017-12-21 13:51 ` [PATCH 0/7] RapidIO: Adjustments for some " Bounine, Alexandre 2017-12-21 13:51 ` Bounine, Alexandre
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