[PATCH] drm/mgag200: Initialize delta variable in PLL compute function

[Thomas Zimmermann]

Initialize delta variable in PLL compute function for G200SE, rev 00 to
the maximum value. Fixes uninitialized usage.

  smatch warnings:
  drivers/gpu/drm/mgag200/mgag200_pll.c:142 mgag200_pixpll_compute_g200se_00() \
  error: uninitialized symbol 'delta'.

Signed-off-by: Thomas Zimmermann <tzimmermann at suse.de>
Fixes: 2545ac960364 ("drm/mgag200: Abstract pixel PLL via struct mgag200_pll")
Reported-by: kernel test robot <lkp at intel.com>
Reported-by: Dan Carpenter <dan.carpenter at oracle.com>
Cc: Thomas Zimmermann <tzimmermann at suse.de>
Cc: Sam Ravnborg <sam at ravnborg.org>
Cc: Dave Airlie <airlied at redhat.com>
Cc: dri-devel at lists.freedesktop.org
---
 drivers/gpu/drm/mgag200/mgag200_pll.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/gpu/drm/mgag200/mgag200_pll.c b/drivers/gpu/drm/mgag200/mgag200_pll.c
index 7c903cf19c0d..e9ae22b4f813 100644
--- a/drivers/gpu/drm/mgag200/mgag200_pll.c
+++ b/drivers/gpu/drm/mgag200/mgag200_pll.c
@@ -124,6 +124,7 @@ static int mgag200_pixpll_compute_g200se_00(struct mgag200_pll *pixpll, long clo
 	unsigned int computed;

 	m = n = p = s = 0;
+	delta = 0xffffffff;
 	permitteddelta = clock * 5 / 1000;

 	for (testp = 8; testp > 0; testp /= 2) {
--
2.32.0