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authorBart Van Assche <bart.vanassche@sandisk.com>2016-11-22 00:58:18 +0300
committerDoug Ledford <dledford@redhat.com>2016-12-14 21:31:47 +0300
commit4fa354c9dbfef9226a690d8ee319b046f3067a6a (patch)
treec03b9e1df1752e7da6c988e5fa99b77e1cb3c5df /drivers/infiniband
parent290081b45342ef902ed756f929fa9e4feb9f7dab (diff)
downloadlinux-4fa354c9dbfef9226a690d8ee319b046f3067a6a.tar.xz
IB/srp: Make writing the add_target sysfs attr interruptible
Avoid that shutdown of srp_daemon is delayed if add_target_mutex is held by another process. Signed-off-by: Bart Van Assche <bart.vanassche@sandisk.com> Signed-off-by: Doug Ledford <dledford@redhat.com>
Diffstat (limited to 'drivers/infiniband')
-rw-r--r--drivers/infiniband/ulp/srp/ib_srp.c5
1 files changed, 4 insertions, 1 deletions
diff --git a/drivers/infiniband/ulp/srp/ib_srp.c b/drivers/infiniband/ulp/srp/ib_srp.c
index bb9d73daadfa..8ddc07123193 100644
--- a/drivers/infiniband/ulp/srp/ib_srp.c
+++ b/drivers/infiniband/ulp/srp/ib_srp.c
@@ -3299,7 +3299,9 @@ static ssize_t srp_create_target(struct device *dev,
*/
scsi_host_get(target->scsi_host);
- mutex_lock(&host->add_target_mutex);
+ ret = mutex_lock_interruptible(&host->add_target_mutex);
+ if (ret < 0)
+ goto put;
ret = srp_parse_options(buf, target);
if (ret)
@@ -3455,6 +3457,7 @@ connected:
out:
mutex_unlock(&host->add_target_mutex);
+put:
scsi_host_put(target->scsi_host);
if (ret < 0)
scsi_host_put(target->scsi_host);