From: Bart Van Assche Date: Mon, 21 Nov 2016 21:58:18 +0000 (-0800) Subject: IB/srp: Make writing the add_target sysfs attr interruptible X-Git-Url: https://git.karo-electronics.de/?a=commitdiff_plain;h=4fa354c9dbfef9226a690d8ee319b046f3067a6a;p=linux-beck.git 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 Signed-off-by: Doug Ledford --- 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);