arch/frv/kernel/setup.c: use strncmp() instead of memcmp()
'cmdline' is a NUL terminated string, when its length < 4, memcmp() will cause memory access out of boundary. So use strncmp() instead of memcmp(). Signed-off-by: Chen Gang <gang.chen@asianux.com> Cc: David Howells <dhowells@redhat.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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@ -735,7 +735,7 @@ static void __init parse_cmdline_early(char *cmdline)
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/* "mem=XXX[kKmM]" sets SDRAM size to <mem>, overriding the value we worked
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/* "mem=XXX[kKmM]" sets SDRAM size to <mem>, overriding the value we worked
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* out from the SDRAM controller mask register
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* out from the SDRAM controller mask register
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*/
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*/
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if (!memcmp(cmdline, "mem=", 4)) {
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if (!strncmp(cmdline, "mem=", 4)) {
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unsigned long long mem_size;
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unsigned long long mem_size;
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mem_size = memparse(cmdline + 4, &cmdline);
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mem_size = memparse(cmdline + 4, &cmdline);
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