[PATCH] [media] bt8xx: Remove unnecessary self-assignment

From: Nathan Chancellor
Date: Sat Sep 15 2018 - 02:14:22 EST


Clang warns when a variable is assigned to itself.

drivers/media/pci/bt8xx/bttv-driver.c:2043:13: warning: explicitly
assigning value of variable of type '__s32' (aka 'int') to itself
[-Wself-assign]
min_height = min_height;
~~~~~~~~~~ ^ ~~~~~~~~~~
1 warning generated.

There doesn't appear to be any good reason for this and this statement
was added in commit e5bd0260e7d3 ("V4L/DVB (5077): Bttv cropping
support") back in 2007. Just remove it.

Reported-by: Nick Desaulniers <ndesaulniers@xxxxxxxxxx>
Signed-off-by: Nathan Chancellor <natechancellor@xxxxxxxxx>
---

I'm not sure if the comment should have been removed as well. If it
does, I can easily send a v2.

Thanks!

drivers/media/pci/bt8xx/bttv-driver.c | 1 -
1 file changed, 1 deletion(-)

diff --git a/drivers/media/pci/bt8xx/bttv-driver.c b/drivers/media/pci/bt8xx/bttv-driver.c
index 413bf287547c..b2cfcbb0008e 100644
--- a/drivers/media/pci/bt8xx/bttv-driver.c
+++ b/drivers/media/pci/bt8xx/bttv-driver.c
@@ -2040,7 +2040,6 @@ limit_scaled_size_lock (struct bttv_fh * fh,
max_width = max_width & width_mask;

/* Max. scale factor is 16:1 for frames, 8:1 for fields. */
- min_height = min_height;
/* Min. scale factor is 1:1. */
max_height >>= !V4L2_FIELD_HAS_BOTH(field);

--
2.18.0