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omapfb: Fix potential NULL pointer dereference in kmalloc

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Memory allocated, using kmalloc, for new_compat may fail. This patch
checks for such an error and prevents potential NULL pointer
dereference.

Signed-off-by: Aditya Pakki <pakki001@umn.edu>
Cc: Kangjie Lu <kjlu@umn.edu>
Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
This commit is contained in:
Aditya Pakki 2019-04-01 17:46:57 +02:00 committed by Bartlomiej Zolnierkiewicz
parent 17de805aa6
commit 31fa6e2ae6
1 changed files with 2 additions and 0 deletions
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2
drivers/video/fbdev/omap2/omapfb/dss/omapdss-boot-init.c
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@ -111,6 +111,8 @@ static void __init omapdss_omapify_node(struct device_node *node)
new_len = prop->length + strlen(prefix) * num_strs;
new_compat = kmalloc(new_len, GFP_KERNEL);
if (!new_compat)
return;
omapdss_prefix_strcpy(new_compat, new_len, prop->value, prop->length);