[PATCH v2 23/41] media: atomisp: Remove unnecessary NULL checks in ia_css_pipe_load_extension

[Mauro Carvalho Chehab <mchehab+huawei@kernel.org>]

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