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authorDaisuke Ogino <ogino.daisuke@jp.fujitsu.com>2011-07-26 23:08:37 (GMT)
committerLinus Torvalds <torvalds@linux-foundation.org>2011-07-26 23:49:43 (GMT)
commitd2857e79a2ba7c155eaa1a7d3581c8d26b31e54e (patch)
tree6e008e65884e991c8696de2862166b7a0d603e06
parent5296f6d315bdd8f1dc97348b788638327a6ab192 (diff)
procfs: return ENOENT on opening a being-removed proc entry
Change the return value to ENOENT. This return value is then returned when opening the proc entry that have been removed. For example, open("/proc/bus/pci/XX/YY") when the corresponding device is being hot-removed. Signed-off-by: Daisuke Ogino <ogino.daisuke@jp.fujitsu.com> Cc: Jesse Barnes <jbarnes@virtuousgeek.org> Acked-by: Alexey Dobriyan <adobriyan@gmail.com> Cc: Christoph Hellwig <hch@lst.de> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
-rw-r--r--fs/proc/inode.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/fs/proc/inode.c b/fs/proc/inode.c
index 74b48cf..7ed72d6 100644
--- a/fs/proc/inode.c
+++ b/fs/proc/inode.c
@@ -319,7 +319,7 @@ static int proc_reg_open(struct inode *inode, struct file *file)
if (!pde->proc_fops) {
spin_unlock(&pde->pde_unload_lock);
kfree(pdeo);
- return -EINVAL;
+ return -ENOENT;
}
pde->pde_users++;
open = pde->proc_fops->open;

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