4.19-stable review patch. If anyone has any objections, please let me know.
------------------ From: Yihao Wu <[email protected]> commit dd838821f0a29781b185cd8fb8e48d5c177bd838 upstream. Commit 62a063b8e7d1 "nfsd4: fix crash on writing v4_end_grace before nfsd startup" is trying to fix a NULL dereference issue, but it mistakenly checks if the nfsd server is started. So fix it. Fixes: 62a063b8e7d1 "nfsd4: fix crash on writing v4_end_grace before nfsd startup" Cc: [email protected] Reviewed-by: Joseph Qi <[email protected]> Signed-off-by: Yihao Wu <[email protected]> Signed-off-by: J. Bruce Fields <[email protected]> Signed-off-by: Greg Kroah-Hartman <[email protected]> --- fs/nfsd/nfsctl.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) --- a/fs/nfsd/nfsctl.c +++ b/fs/nfsd/nfsctl.c @@ -1126,7 +1126,7 @@ static ssize_t write_v4_end_grace(struct case 'Y': case 'y': case '1': - if (nn->nfsd_serv) + if (!nn->nfsd_serv) return -EBUSY; nfsd4_end_grace(nn); break;
