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msm: mdss: adjust mdss_mdp_get_plane_sizes parameters init order

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Parameter mdss_mdp_plane_sizes must be cleared to 0 before returning
under an error condition, otherwise caller function will use the
uninitialized mdss_mdp_plane_sizes values and caused incorrect
operation.

Change-Id: I856b17ce9e917cc450040463ec34b7309d34b9b5
Signed-off-by: Benjamin Chan <bkchan@codeaurora.org>
This commit is contained in:
Benjamin Chan 2017-11-14 00:27:17 -05:00 • committed by Gerrit - the friendly Code Review server
parent ae2f6cb5ad
commit 9b0c877cd1
1 changed files with 2 additions and 1 deletions
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3
drivers/video/fbdev/msm/mdss_mdp_util.c
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@ -524,11 +524,12 @@ int mdss_mdp_get_plane_sizes(struct mdss_mdp_format_params *fmt, u32 w, u32 h,
if (ps == NULL)
return -EINVAL;
memset(ps, 0, sizeof(struct mdss_mdp_plane_sizes));
if ((w > MAX_IMG_WIDTH) || (h > MAX_IMG_HEIGHT))
return -ERANGE;
bpp = fmt->bpp;
memset(ps, 0, sizeof(struct mdss_mdp_plane_sizes));
if (mdss_mdp_is_ubwc_format(fmt)) {
rc = mdss_mdp_get_ubwc_plane_size(fmt, w, h, ps);