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Subject[PATCH v2 23/41] media: atomisp: Remove unnecessary NULL checks in ia_css_pipe_load_extension
Date
From: Nathan Chancellor <natechancellor@gmail.com>

Clang warns:

../drivers/staging/media/atomisp/pci/sh_css.c:8537:14: warning: address
of 'pipe->output_stage' will always evaluate to 'true'
[-Wpointer-bool-conversion]
if (&pipe->output_stage)
~~ ~~~~~~^~~~~~~~~~~~
../drivers/staging/media/atomisp/pci/sh_css.c:8545:14: warning: address
of 'pipe->vf_stage' will always evaluate to 'true'
[-Wpointer-bool-conversion]
if (&pipe->vf_stage)
~~ ~~~~~~^~~~~~~~

output_stage and vf_stage are pointers in the middle of a struct, their
addresses cannot be NULL if pipe is not NULL and pipe is already checked
for NULL in this function. Simplify this if block.

Link: https://github.com/ClangBuiltLinux/linux/issues/1036

Signed-off-by: Nathan Chancellor <natechancellor@gmail.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
---
drivers/staging/media/atomisp/pci/sh_css.c | 19 +++----------------
1 file changed, 3 insertions(+), 16 deletions(-)

diff --git a/drivers/staging/media/atomisp/pci/sh_css.c b/drivers/staging/media/atomisp/pci/sh_css.c
index 6e18841db58a..4269c16ad4f1 100644
--- a/drivers/staging/media/atomisp/pci/sh_css.c
+++ b/drivers/staging/media/atomisp/pci/sh_css.c
@@ -8491,22 +8491,9 @@ ia_css_pipe_load_extension(struct ia_css_pipe *pipe,
}

if (firmware->info.isp.type == IA_CSS_ACC_OUTPUT)
- {
- if (&pipe->output_stage)
- append_firmware(&pipe->output_stage, firmware);
- else {
- IA_CSS_LEAVE_ERR_PRIVATE(IA_CSS_ERR_INTERNAL_ERROR);
- return IA_CSS_ERR_INTERNAL_ERROR;
- }
- } else if (firmware->info.isp.type == IA_CSS_ACC_VIEWFINDER)
- {
- if (&pipe->vf_stage)
- append_firmware(&pipe->vf_stage, firmware);
- else {
- IA_CSS_LEAVE_ERR_PRIVATE(IA_CSS_ERR_INTERNAL_ERROR);
- return IA_CSS_ERR_INTERNAL_ERROR;
- }
- }
+ append_firmware(&pipe->output_stage, firmware);
+ else if (firmware->info.isp.type == IA_CSS_ACC_VIEWFINDER)
+ append_firmware(&pipe->vf_stage, firmware);
err = acc_load_extension(firmware);

IA_CSS_LEAVE_ERR_PRIVATE(err);
--
2.26.2
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