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[PATCH] compat_sys_nfsservctl(): handle errors correctly

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Correct some error handling on the compat version of the nfsservctl()
system.  It was detecting errors while copying in the arguments from user
space, but then attempting to use the arguments anyway.  This didn't seem
so good.

Signed-off-by: Peter Staubach <staubach@redhat.com>
Cc: Trond Myklebust <trond.myklebust@fys.uio.no>
Cc: Neil Brown <neilb@cse.unsw.edu.au>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
This commit is contained in:
Peter Staubach 2006-03-25 03:08:04 -08:00 committed by Linus Torvalds
parent 30087baf88
commit 57070d012c
1 changed files with 4 additions and 1 deletions
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5
fs/compat.c
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@ -2170,9 +2170,12 @@ asmlinkage long compat_sys_nfsservctl(int cmd, struct compat_nfsctl_arg __user *
default: default:
err = -EINVAL; err = -EINVAL;
goto done; break;
} }
if (err)
goto done;
oldfs = get_fs(); oldfs = get_fs();
set_fs(KERNEL_DS); set_fs(KERNEL_DS);
/* The __user pointer casts are valid because of the set_fs() */ /* The __user pointer casts are valid because of the set_fs() */