devm_ioremap_resource() doesn't return NULL but an ERR_PTR on error.
Reported-by: Jonas Gorsky <j...@openwrt.org>
Signed-off-by: Christophe Leroy <christophe.le...@c-s.fr>
---
drivers/spi/spi-fsl-cpm.c | 7 ++++++-
1 file changed, 6 insertions(+), 1 deletion(-)
diff --git a/drivers/spi/spi-fsl-cpm.c b/drivers/spi/spi-fsl-cpm.c
index 4e5c945..1e66644 100644
--- a/drivers/spi/spi-fsl-cpm.c
+++ b/drivers/spi/spi-fsl-cpm.c
@@ -305,10 +305,15 @@ int fsl_spi_cpm_init(struct mpc8xxx_spi *mspi)
if (mspi->flags & SPI_CPM1) {
struct resource *res;
+ void *pram;
res = platform_get_resource(to_platform_device(dev),
IORESOURCE_MEM, 1);
- mspi->pram = devm_ioremap_resource(dev, res);
+ pram = devm_ioremap_resource(dev, res);
+ if (IS_ERR(pram))
+ mspi->pram = NULL;
+ else
+ mspi->pram = pram;
} else {
unsigned long pram_ofs = fsl_spi_cpm_get_pram(mspi);
--
2.1.0
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