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nanddump: make dumping read-only partitions work

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Make dumping read-only partitions work by opening the device
O_RDONLY; otherwise the open() will fail with -EPERM.

Signed-off-by: Matt Reimer <mreimer@sdgsystems.com>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
This commit is contained in:
Matt Reimer 2012-05-30 10:31:13 -04:00 committed by Denys Vlasenko
parent 772f17a843
commit 6979325592
1 changed files with 1 additions and 1 deletions
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miscutils/nandwrite.c
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@ -129,7 +129,7 @@ int nandwrite_main(int argc UNUSED_PARAM, char **argv)
xmove_fd(tmp_fd, IS_NANDDUMP ? STDOUT_FILENO : STDIN_FILENO);
}
fd = xopen(argv[0], O_RDWR);
fd = xopen(argv[0], IS_NANDWRITE ? O_RDWR : O_RDONLY);
xioctl(fd, MEMGETINFO, &meminfo);
mtdoffset = xstrtou(opt_s, 0);