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authorChristophe Leroy <christophe.leroy@c-s.fr>2015-04-23 14:11:47 +0200
committerMark Brown <broonie@kernel.org>2015-04-24 13:27:53 +0100
commit73ee39a4c944a11cfd6d43ba1f634da340bf5537 (patch)
treea3e0901686cbc8f4a8e326b81c3230b2f6e3747b /drivers
parent575bec53181526ed01c0936ec008e1b70f8f5f31 (diff)
downloadlinux-73ee39a4c944a11cfd6d43ba1f634da340bf5537.tar.bz2
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>
Diffstat (limited to 'drivers')
-rw-r--r--drivers/spi/spi-fsl-cpm.c7
1 files changed, 6 insertions, 1 deletions
diff --git a/drivers/spi/spi-fsl-cpm.c b/drivers/spi/spi-fsl-cpm.c
index 6f466ab1201a..896add8cfd3b 100644
--- a/drivers/spi/spi-fsl-cpm.c
+++ b/drivers/spi/spi-fsl-cpm.c
@@ -310,10 +310,15 @@ 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);