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OMAPFB: prevent buffer underflow in omapfb_parse_vram_param()

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We cap the upper bound of "fbnum" but we also need to check for
negatives or make the type unsigned.

Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Cc: Tomi Valkeinen <tomi.valkeinen@ti.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
This commit is contained in:
Dan Carpenter 2017-11-17 17:21:49 +01:00 committed by Bartlomiej Zolnierkiewicz
parent 5fa1f45de8
commit 5f215d2524
1 changed files with 1 additions and 1 deletions
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2
drivers/video/fbdev/omap2/omapfb/omapfb-main.c
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@ -1477,7 +1477,7 @@ static int omapfb_alloc_fbmem_display(struct fb_info *fbi, unsigned long size,
static int omapfb_parse_vram_param(const char *param, int max_entries,
unsigned long *sizes, unsigned long *paddrs)
{
int fbnum;
unsigned int fbnum;
unsigned long size;
unsigned long paddr = 0;
char *p, *start;