From: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
To: balbi@kernel.org, gregkh@linuxfoundation.org, krzk@kernel.org,
nathan@kernel.org, gustavoars@kernel.org, arnd@arndb.de,
ben-linux@fluff.org
Cc: linux-usb@vger.kernel.org, linux-arm-kernel@lists.infradead.org,
linux-samsung-soc@vger.kernel.org, linux-kernel@vger.kernel.org,
kernel-janitors@vger.kernel.org,
Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Subject: [PATCH 1/2 V2] usb: gadget: s3c: Fix incorrect resources releasing
Date: Sat, 6 Mar 2021 15:21:08 +0100 [thread overview]
Message-ID: <20210306142108.3429-1-christophe.jaillet@wanadoo.fr> (raw)
Since commit 188db4435ac6 ("usb: gadget: s3c: use platform resources"),
'request_mem_region()' and 'ioremap()' are no more used, so they don't need
to be undone in the error handling path of the probe and in the removre
function.
Remove these calls and the unneeded 'rsrc_start' and 'rsrc_len' global
variables.
Fixes: 188db4435ac6 ("usb: gadget: s3c: use platform resources")
Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
---
the 'err' label is used only to reduce the diff size of this patch. It is
removed in the following patch.
v2: Fix a stupid error in the hash in Fixes:
---
drivers/usb/gadget/udc/s3c2410_udc.c | 14 +++-----------
1 file changed, 3 insertions(+), 11 deletions(-)
diff --git a/drivers/usb/gadget/udc/s3c2410_udc.c b/drivers/usb/gadget/udc/s3c2410_udc.c
index f1ea51476add..3fc436286bad 100644
--- a/drivers/usb/gadget/udc/s3c2410_udc.c
+++ b/drivers/usb/gadget/udc/s3c2410_udc.c
@@ -54,8 +54,6 @@ static struct clk *udc_clock;
static struct clk *usb_bus_clock;
static void __iomem *base_addr;
static int irq_usbd;
-static u64 rsrc_start;
-static u64 rsrc_len;
static struct dentry *s3c2410_udc_debugfs_root;
static inline u32 udc_read(u32 reg)
@@ -1775,7 +1773,7 @@ static int s3c2410_udc_probe(struct platform_device *pdev)
base_addr = devm_platform_ioremap_resource(pdev, 0);
if (!base_addr) {
retval = -ENOMEM;
- goto err_mem;
+ goto err;
}
the_controller = udc;
@@ -1793,7 +1791,7 @@ static int s3c2410_udc_probe(struct platform_device *pdev)
if (retval != 0) {
dev_err(dev, "cannot get irq %i, err %d\n", irq_usbd, retval);
retval = -EBUSY;
- goto err_map;
+ goto err;
}
dev_dbg(dev, "got irq %i\n", irq_usbd);
@@ -1864,10 +1862,7 @@ static int s3c2410_udc_probe(struct platform_device *pdev)
gpio_free(udc_info->vbus_pin);
err_int:
free_irq(irq_usbd, udc);
-err_map:
- iounmap(base_addr);
-err_mem:
- release_mem_region(rsrc_start, rsrc_len);
+err:
return retval;
}
@@ -1899,9 +1894,6 @@ static int s3c2410_udc_remove(struct platform_device *pdev)
free_irq(irq_usbd, udc);
- iounmap(base_addr);
- release_mem_region(rsrc_start, rsrc_len);
-
if (!IS_ERR(udc_clock) && udc_clock != NULL) {
clk_disable_unprepare(udc_clock);
clk_put(udc_clock);
--
2.27.0
next reply other threads:[~2021-03-06 14:22 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-03-06 14:21 Christophe JAILLET [this message]
2021-03-06 16:13 ` [PATCH 1/2 V2] usb: gadget: s3c: Fix incorrect resources releasing Krzysztof Kozlowski
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