Messages in this thread Patch in this message | | | Date | Mon, 11 Jun 2007 14:17:16 +0200 | From | Pavel Machek <> | Subject | fix oops on cat /dev/snapshot |
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What /dev/snapshot is simply cat-ed -- without ioctls used in normal operation -- it oopses. This one should fix it.
Signed-off-by: Pavel Machek <pavel@suse.cz>
--- clean-mm/kernel/power/user.c 2007-06-09 16:18:12.000000000 +0200 +++ linux-mm/kernel/power/user.c 2007-06-11 14:06:19.000000000 +0200 @@ -99,6 +99,8 @@ ssize_t res; data = filp->private_data; + if (!data->ready) + return -EINVAL; res = snapshot_read_next(&data->handle, count); if (res > 0) { if (copy_to_user(buf, data_of(data->handle), res)) -- (english) http://www.livejournal.com/~pavelmachek (cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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