spi: fsl-spi: fix devm_ioremap_resource() error case
devm_ioremap_resource() doesn't return NULL but an ERR_PTR on error.
Reported-by: Jonas Gorsky <jogo@openwrt.org>
Signed-off-by: Christophe Leroy <christophe.leroy@c-s.fr>
Signed-off-by: Mark Brown <broonie@kernel.org>
diff --git a/drivers/spi/spi-fsl-cpm.c b/drivers/spi/spi-fsl-cpm.c
index 6f466ab..896add8 100644
--- a/drivers/spi/spi-fsl-cpm.c
+++ b/drivers/spi/spi-fsl-cpm.c
@@ -310,10 +310,15 @@
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);