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fs/exfat: do error check for d_splice_alias return

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This patch adds error check in case a defect exFAT SD cards is inserted.

Change-Id: I37f6b8716abd556908aad72b18fcc7ac5719766e
Signed-off-by: Min Shi <e13386@motorola.com>
Signed-off-by: Shiyong Li <a22381@motorola.com>
Reviewed-on: https://gerrit.mot.com/1102184
SLTApproved: Slta Waiver
SME-Granted: SME Approvals Granted
Tested-by: Jira Key
Reviewed-by: Igor Kovalenko <igork@motorola.com>
Submit-Approved: Jira Key
This commit is contained in:
Shiyong Li 2017-12-08 17:38:24 -08:00 • committed by Shi-Yong Li
commit 9e75018bbf
1 changed files with 1 additions and 1 deletions
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2
fs/exfat/exfat_super.c
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@ -873,7 +873,7 @@ out:
}
#else
dentry = d_splice_alias(inode, dentry);
if (dentry)
if (dentry && !IS_ERR(dentry))
dentry->d_time = dentry->d_parent->d_inode->i_version;
#endif
DPRINTK("exfat_lookup exited 2\n");