cmd_nand: fix crashing bug in nand read/write
Commit 418396e212
introduced a
bug that causes nand read and nand write to crash in strcmp
due to a null pointer.
Root cause is that strchr(cmd, '.') returns a null pointer when
the input string does not contain a '.'
The strcmp function does not check for null pointers, resulting
in a crash.
Signed-off-by: Steve Sakoman <steve@sakoman.com>
Signed-off-by: Scott Wood <scott@tyr.buserror.net>
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@ -617,7 +617,7 @@ int do_nand(cmd_tbl_t * cmdtp, int flag, int argc, char * const argv[])
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s = strchr(cmd, '.');
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if (!strcmp(s, ".raw")) {
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if (s && !strcmp(s, ".raw")) {
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raw = 1;
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if (arg_off(argv[3], &dev, &off, &size))
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