target/linux/bcm53xx/patches-4.4/083-0006-spi-bcm-qspi-Fix-return-value-check-in-bcm_qspi_prob.patch

   1 From 3bf3eb2b95aaf18eff3080444b24673cda8ff9a2 Mon Sep 17 00:00:00 2001
   2 From: Wei Yongjun <weiyongjun1@huawei.com>
   3 Date: Fri, 16 Sep 2016 13:45:17 +0000
   4 Subject: [PATCH] spi: bcm-qspi: Fix return value check in bcm_qspi_probe()
   5
   6 In case of error, the function kcalloc() returns NULL pointer
   7 not ERR_PTR(). The IS_ERR() test in the return value check
   8 should be replaced with NULL test.
   9
  10 Fixes: fa236a7ef240 ("spi: bcm-qspi: Add Broadcom MSPI driver")
  11 Signed-off-by: Wei Yongjun <weiyongjun1@huawei.com>
  12 Signed-off-by: Mark Brown <broonie@kernel.org>
  13 ---
  14  drivers/spi/spi-bcm-qspi.c | 4 ++--
  15  1 file changed, 2 insertions(+), 2 deletions(-)
  16
  17 --- a/drivers/spi/spi-bcm-qspi.c
  18 +++ b/drivers/spi/spi-bcm-qspi.c
  19 @@ -1174,8 +1174,8 @@ int bcm_qspi_probe(struct platform_devic
  20
  21         qspi->dev_ids = kcalloc(num_irqs, sizeof(struct bcm_qspi_dev_id),
  22                                 GFP_KERNEL);
  23 -       if (IS_ERR(qspi->dev_ids)) {
  24 -               ret = PTR_ERR(qspi->dev_ids);
  25 +       if (!qspi->dev_ids) {
  26 +               ret = -ENOMEM;
  27                 goto qspi_probe_err;
  28         }
  29