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rescan_partitions(): make device capacity errors non-fatal

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Herton Krzesinski reports that the error-checking changes in
04ebd4aee5 ("block/ioctl.c and
fs/partition/check.c: check value returned by add_partition") cause his
buggy USB camera to no longer mount.  "The camera is an Olympus X-840.
The original issue comes from the camera itself: its format program
creates a partition with an off by one error".

Buggy devices happen.  It is better for the kernel to warn and to proceed
with the mount.

Reported-by: Herton Ronaldo Krzesinski <[email protected]>
Cc: Abdel Benamrouche <[email protected]>
Cc: Jens Axboe <[email protected]>
Cc: Alan Stern <[email protected]>
Cc: David Brownell <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
Signed-off-by: Linus Torvalds <[email protected]>
This commit is contained in:
Andrew Morton 2008-09-13 02:33:25 -07:00 • committed by Linus Torvalds
commit 8d99f83b94
1 changed files with 2 additions and 2 deletions
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4
fs/partitions/check.c
View file

@ -499,9 +499,9 @@ int rescan_partitions(struct gendisk *disk, struct block_device *bdev)
if (!size)
continue;
if (from + size > get_capacity(disk)) {
printk(KERN_ERR " %s: p%d exceeds device capacity\n",
printk(KERN_WARNING
"%s: p%d exceeds device capacity\n",
disk->disk_name, p);
continue;
}
res = add_partition(disk, p, from, size, state->parts[p].flags);
if (res) {