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video: omap2: Use scnprintf() for avoiding potential buffer overflow
authorTakashi Iwai <tiwai@suse.de>
Wed, 11 Mar 2020 09:32:29 +0000 (10:32 +0100)
committerBartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
Fri, 20 Mar 2020 13:29:05 +0000 (14:29 +0100)
commit42f21e5452a24d205dcc029be4075b8be07f2ac0
tree74437326b2c3f093aada2c356515280738a9c0ec
parentbf1b615ad97e6ce915b0f510c031803da71b02b8
video: omap2: Use scnprintf() for avoiding potential buffer overflow

Since snprintf() returns the would-be-output size instead of the
actual output size, the succeeding calls may go beyond the given
buffer limit.  Fix it by replacing with scnprintf().

Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20200311093230.24900-3-tiwai@suse.de
drivers/video/fbdev/omap2/omapfb/omapfb-sysfs.c