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authorIngo Molnar <mingo@elte.hu>2009-01-21 16:37:27 +0100
committerIngo Molnar <mingo@elte.hu>2009-01-21 16:37:27 +0100
commit77835492ed489c0b870f82f4c50687bd267acc0a (patch)
treed80903ce1b8dd30aa44ccfc756616ad4d6c74d63 /drivers/gpio/mcp23s08.c
parentaf37501c792107c2bde1524bdae38d9a247b841a (diff)
parent1de9e8e70f5acc441550ca75433563d91b269bbe (diff)
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Merge commit 'v2.6.29-rc2' into perfcounters/core
Conflicts: include/linux/syscalls.h
Diffstat (limited to 'drivers/gpio/mcp23s08.c')
-rw-r--r--drivers/gpio/mcp23s08.c6
1 files changed, 4 insertions, 2 deletions
diff --git a/drivers/gpio/mcp23s08.c b/drivers/gpio/mcp23s08.c
index 89c1d222e9d1..f6fae0e50e65 100644
--- a/drivers/gpio/mcp23s08.c
+++ b/drivers/gpio/mcp23s08.c
@@ -310,8 +310,10 @@ static int mcp23s08_probe(struct spi_device *spi)
unsigned base;
pdata = spi->dev.platform_data;
- if (!pdata || !gpio_is_valid(pdata->base))
- return -ENODEV;
+ if (!pdata || !gpio_is_valid(pdata->base)) {
+ dev_dbg(&spi->dev, "invalid or missing platform data\n");
+ return -EINVAL;
+ }
for (addr = 0; addr < 4; addr++) {
if (!pdata->chip[addr].is_present)