spi: loopback-test: Fix kfree() NULL pointer error.

Here, rx/tx allocation can fail. So avoid kvfree call
with NULL pointer.

Signed-off-by: Arvind Yadav <arvind.yadav.cs@gmail.com>
Signed-off-by: Mark Brown <broonie@kernel.org>

1 files changed, 6 insertions, 6 deletions

diff --git a/drivers/spi/spi-loopback-test.c b/drivers/spi/spi-loopback-test.c
index 514997a143dc..3459965004f8 100644
--- a/drivers/spi/spi-loopback-test.c
+++ b/drivers/spi/spi-loopback-test.c
@@ -1021,10 +1021,9 @@ int spi_test_run_tests(struct spi_device *spi,
                 rx = vmalloc(SPI_TEST_MAX_SIZE_PLUS);
         else
                 rx = kzalloc(SPI_TEST_MAX_SIZE_PLUS, GFP_KERNEL);
-        if (!rx) {
-                ret = -ENOMEM;
-                goto out;
-        }
+        if (!rx)
+                return -ENOMEM;
+
 
         if (use_vmalloc)
                 tx = vmalloc(SPI_TEST_MAX_SIZE_PLUS);
@@ -1032,7 +1031,7 @@ int spi_test_run_tests(struct spi_device *spi,
                 tx = kzalloc(SPI_TEST_MAX_SIZE_PLUS, GFP_KERNEL);
         if (!tx) {
                 ret = -ENOMEM;
-                goto out;
+                goto err_tx;
         }
 
         /* now run the individual tests in the table */
@@ -1057,8 +1056,9 @@ int spi_test_run_tests(struct spi_device *spi,
         }
 
 out:
-        kvfree(rx);
         kvfree(tx);
+err_tx:
+        kvfree(rx);
         return ret;
 }
 EXPORT_SYMBOL_GPL(spi_test_run_tests);