[PATCH 25/29] staging/lustre: Properly cast ll_fid2path argument to __user in ll_file_ioctl

green at linuxhacker.ru green at linuxhacker.ru
Sun Jan 3 17:05:56 UTC 2016


From: Oleg Drokin <green at linuxhacker.ru>

When calling ll_fid2path, it expects a userspace pointer.

Signed-off-by: Oleg Drokin <green at linuxhacker.ru>
---
 drivers/staging/lustre/lustre/llite/file.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/staging/lustre/lustre/llite/file.c b/drivers/staging/lustre/lustre/llite/file.c
index 6fef267..b9f58bf 100644
--- a/drivers/staging/lustre/lustre/llite/file.c
+++ b/drivers/staging/lustre/lustre/llite/file.c
@@ -2296,7 +2296,7 @@ ll_file_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
 		return 0;
 	}
 	case OBD_IOC_FID2PATH:
-		return ll_fid2path(inode, (void *)arg);
+		return ll_fid2path(inode, (void __user *)arg);
 	case LL_IOC_DATA_VERSION: {
 		struct ioc_data_version	idv;
 		int			rc;
-- 
2.1.0



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