Author: Andrzej Hajda <a.hajda@samsung.com> The function can return negative value, assigning it to unsigned variable can cause memory corruption. The problem has been detected using proposed semantic patch scripts/coccinelle/tests/unsigned_lesser_than_zero.cocci [1]. [1]: http://permalink.gmane.org/gmane.linux.kernel/2038576 Signed-off-by: Andrzej Hajda Cc: Bartlomiej Zolnierkiewicz Cc: Marek Szyprowski Cc: Peter Zijlstra Cc: kernel-janitors@vger.kernel.org Link: http://lkml.kernel.org/r/1444122017-16856-1-git-send-email-a.hajda@samsung.com Signed-off-by: Arnaldo Carvalho de Melo — tools/perf/util/event.c …
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