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authorWei Yongjun <weiyongjun1@huawei.com>2021-04-12 19:00:25 +0300
committerMark Brown <broonie@kernel.org>2021-04-12 19:07:39 +0300
commit6043357263fbe2df0bf0736d971ad5dce7d19dc1 (patch)
tree112f59f10ccc1bdfa271d45a44725668b5a628b3 /drivers/spi
parent828b480977421e9fbe93ecbdc65689ec7cc1e834 (diff)
downloadlinux-6043357263fbe2df0bf0736d971ad5dce7d19dc1.tar.xz
spi: spi-zynqmp-gqspi: Fix missing unlock on error in zynqmp_qspi_exec_op()
Add the missing unlock before return from function zynqmp_qspi_exec_op() in the error handling case. Fixes: a0f65be6e880 ("spi: spi-zynqmp-gqspi: add mutex locking for exec_op") Reported-by: Hulk Robot <hulkci@huawei.com> Signed-off-by: Wei Yongjun <weiyongjun1@huawei.com> Link: https://lore.kernel.org/r/20210412160025.194171-1-weiyongjun1@huawei.com Signed-off-by: Mark Brown <broonie@kernel.org>
Diffstat (limited to 'drivers/spi')
-rw-r--r--drivers/spi/spi-zynqmp-gqspi.c4
1 files changed, 3 insertions, 1 deletions
diff --git a/drivers/spi/spi-zynqmp-gqspi.c b/drivers/spi/spi-zynqmp-gqspi.c
index 036d8ae41c06..408e348382c5 100644
--- a/drivers/spi/spi-zynqmp-gqspi.c
+++ b/drivers/spi/spi-zynqmp-gqspi.c
@@ -965,8 +965,10 @@ static int zynqmp_qspi_exec_op(struct spi_mem *mem,
if (op->cmd.opcode) {
tmpbuf = kzalloc(op->cmd.nbytes, GFP_KERNEL | GFP_DMA);
- if (!tmpbuf)
+ if (!tmpbuf) {
+ mutex_unlock(&xqspi->op_lock);
return -ENOMEM;
+ }
tmpbuf[0] = op->cmd.opcode;
reinit_completion(&xqspi->data_completion);
xqspi->txbuf = tmpbuf;