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path: root/drivers/gpio/gpio-mcp23s08.c
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Diffstat (limited to 'drivers/gpio/gpio-mcp23s08.c')
-rw-r--r--drivers/gpio/gpio-mcp23s08.c12
1 files changed, 7 insertions, 5 deletions
diff --git a/drivers/gpio/gpio-mcp23s08.c b/drivers/gpio/gpio-mcp23s08.c
index 99a68310e7c0..3d53fd6880d1 100644
--- a/drivers/gpio/gpio-mcp23s08.c
+++ b/drivers/gpio/gpio-mcp23s08.c
@@ -894,9 +894,11 @@ static int mcp23s08_probe(struct spi_device *spi)
894 dev_err(&spi->dev, "invalid spi-present-mask\n"); 894 dev_err(&spi->dev, "invalid spi-present-mask\n");
895 return -ENODEV; 895 return -ENODEV;
896 } 896 }
897 897 for (addr = 0; addr < ARRAY_SIZE(pdata->chip); addr++) {
898 for (addr = 0; addr < ARRAY_SIZE(pdata->chip); addr++) 898 if ((spi_present_mask & (1 << addr)))
899 chips++;
899 pullups[addr] = 0; 900 pullups[addr] = 0;
901 }
900 } else { 902 } else {
901 type = spi_get_device_id(spi)->driver_data; 903 type = spi_get_device_id(spi)->driver_data;
902 pdata = dev_get_platdata(&spi->dev); 904 pdata = dev_get_platdata(&spi->dev);
@@ -919,12 +921,12 @@ static int mcp23s08_probe(struct spi_device *spi)
919 pullups[addr] = pdata->chip[addr].pullups; 921 pullups[addr] = pdata->chip[addr].pullups;
920 } 922 }
921 923
922 if (!chips)
923 return -ENODEV;
924
925 base = pdata->base; 924 base = pdata->base;
926 } 925 }
927 926
927 if (!chips)
928 return -ENODEV;
929
928 data = kzalloc(sizeof(*data) + chips * sizeof(struct mcp23s08), 930 data = kzalloc(sizeof(*data) + chips * sizeof(struct mcp23s08),
929 GFP_KERNEL); 931 GFP_KERNEL);
930 if (!data) 932 if (!data)