From: Zhichao Cai <tomstomsczc@163.com>
To: mchehab@kernel.org, sakari.ailus@linux.intel.com,
gregkh@linuxfoundation.org
Cc: linux-media@vger.kernel.org, linux-staging@lists.linux.dev,
linux-kernel@vger.kernel.org, Zhichao Cai <caizhichao@yulong.com>
Subject: [PATCH] drivers:staging: NULL check before some freeing functions is not needed.
Date: Wed, 24 Mar 2021 16:41:26 +0800 [thread overview]
Message-ID: <20210324084126.895-1-tomstomsczc@163.com> (raw)
From: Zhichao Cai <caizhichao@yulong.com>
Fixes coccicheck warning:
drivers/staging/media/atomisp/pci/isp/kernels/sdis/sdis_1.0/ia_css_sdis.host.c:390:2-8: WARNING: NULL check before some freeing functions is not needed.
drivers/staging/media/atomisp/pci/sh_css_params.c:1579:2-8: WARNING: NULL check before some freeing functions is not needed.
drivers/staging/media/atomisp/pci/sh_css_params.c:3010:2-8: WARNING: NULL check before some freeing functions is not needed.
drivers/staging/media/atomisp/pci/atomisp_cmd.c:4269:2-8: WARNING: NULL check before some freeing functions is not needed.
drivers/staging/media/atomisp/pci/atomisp_cmd.c:4630:2-7: WARNING: NULL check before some freeing functions is not needed.
drivers/staging/media/atomisp/pci/runtime/isp_param/src/isp_param.c:159:4-10: WARNING: NULL check before some freeing functions is not needed.
Signed-off-by: Zhichao Cai <caizhichao@yulong.com>
---
drivers/staging/media/atomisp/pci/atomisp_cmd.c | 6 ++----
.../media/atomisp/pci/isp/kernels/sdis/sdis_1.0/ia_css_sdis.host.c | 3 +--
drivers/staging/media/atomisp/pci/runtime/isp_param/src/isp_param.c | 3 +--
drivers/staging/media/atomisp/pci/sh_css_params.c | 6 ++----
4 files changed, 6 insertions(+), 12 deletions(-)
diff --git a/drivers/staging/media/atomisp/pci/atomisp_cmd.c b/drivers/staging/media/atomisp/pci/atomisp_cmd.c
index 592ea99..72a6cac 100644
--- a/drivers/staging/media/atomisp/pci/atomisp_cmd.c
+++ b/drivers/staging/media/atomisp/pci/atomisp_cmd.c
@@ -4265,8 +4265,7 @@ int atomisp_set_parameters(struct video_device *vdev,
apply_parameter_failed:
if (css_param)
atomisp_free_css_parameters(css_param);
- if (param)
- kvfree(param);
+ kvfree(param);
return ret;
}
@@ -4626,8 +4625,7 @@ int atomisp_fixed_pattern(struct atomisp_sub_device *asd, int flag,
err:
if (ret && res)
ia_css_frame_free(res);
- if (tmp_buf)
- vfree(tmp_buf);
+ vfree(tmp_buf);
if (ret == 0)
*result = res;
return ret;
diff --git a/drivers/staging/media/atomisp/pci/isp/kernels/sdis/sdis_1.0/ia_css_sdis.host.c b/drivers/staging/media/atomisp/pci/isp/kernels/sdis/sdis_1.0/ia_css_sdis.host.c
index 3e72dab..13caa55 100644
--- a/drivers/staging/media/atomisp/pci/isp/kernels/sdis/sdis_1.0/ia_css_sdis.host.c
+++ b/drivers/staging/media/atomisp/pci/isp/kernels/sdis/sdis_1.0/ia_css_sdis.host.c
@@ -386,8 +386,7 @@ struct ia_css_isp_dvs_statistics_map *
return me;
err:
- if (me)
- kvfree(me);
+ kvfree(me);
return NULL;
}
diff --git a/drivers/staging/media/atomisp/pci/runtime/isp_param/src/isp_param.c b/drivers/staging/media/atomisp/pci/runtime/isp_param/src/isp_param.c
index e861777..823ec54 100644
--- a/drivers/staging/media/atomisp/pci/runtime/isp_param/src/isp_param.c
+++ b/drivers/staging/media/atomisp/pci/runtime/isp_param/src/isp_param.c
@@ -155,8 +155,7 @@
for (mem = 0; mem < IA_CSS_NUM_MEMORIES; mem++) {
for (pclass = 0; pclass < IA_CSS_NUM_PARAM_CLASSES; pclass++) {
- if (mem_params->params[pclass][mem].address)
- kvfree(mem_params->params[pclass][mem].address);
+ kvfree(mem_params->params[pclass][mem].address);
if (css_params->params[pclass][mem].address)
hmm_free(css_params->params[pclass][mem].address);
mem_params->params[pclass][mem].address = NULL;
diff --git a/drivers/staging/media/atomisp/pci/sh_css_params.c b/drivers/staging/media/atomisp/pci/sh_css_params.c
index 7467256..644e145 100644
--- a/drivers/staging/media/atomisp/pci/sh_css_params.c
+++ b/drivers/staging/media/atomisp/pci/sh_css_params.c
@@ -1575,8 +1575,7 @@ struct ia_css_isp_3a_statistics_map *
return me;
err:
- if (me)
- kvfree(me);
+ kvfree(me);
return NULL;
}
@@ -3006,8 +3005,7 @@ static void free_map(struct sh_css_ddr_address_map *map)
}
kvfree(params);
- if (per_frame_params)
- kvfree(per_frame_params);
+ kvfree(per_frame_params);
stream->isp_params_configs = NULL;
stream->per_frame_isp_params_configs = NULL;
--
1.9.1
next reply other threads:[~2021-03-24 8:43 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-03-24 8:41 Zhichao Cai [this message]
2021-03-24 9:10 ` [PATCH] drivers:staging: NULL check before some freeing functions is not needed Dan Carpenter
2021-03-24 9:13 ` Greg KH
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