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authorLee Jones2014-08-18 16:03:14 +0100
committerLee Jones2014-09-26 08:15:34 +0100
commit8a012ff9d8723fdf7ea242f0f41703eed7365b79 (patch)
treed881ea9fcaf85a5d2729ac3ddbf8afd1920c06d6 /drivers/mfd/twl4030-irq.c
parentcddc11412d604ad673709e91e7a35e9f10c68b39 (diff)
mfd: twl4030-irq: Check return value from twl_i2c_write() - warn() on failure
In the original code a return value variable was provided, but it was never checked and the user was never informed of failure. Now it is and they are. Signed-off-by: Lee Jones <lee.jones@linaro.org>
Diffstat (limited to 'drivers/mfd/twl4030-irq.c')
-rw-r--r--drivers/mfd/twl4030-irq.c8
1 files changed, 6 insertions, 2 deletions
diff --git a/drivers/mfd/twl4030-irq.c b/drivers/mfd/twl4030-irq.c
index b1dabba763cf..1b772ef761cb 100644
--- a/drivers/mfd/twl4030-irq.c
+++ b/drivers/mfd/twl4030-irq.c
@@ -396,13 +396,17 @@ static int twl4030_init_sih_modules(unsigned line)
status = twl_i2c_read(sih->module, rxbuf,
sih->mask[line].isr_offset, sih->bytes_ixr);
if (status < 0)
- pr_err("twl4030: err %d initializing %s %s\n",
+ pr_warn("twl4030: err %d initializing %s %s\n",
status, sih->name, "ISR");
- if (!sih->set_cor)
+ if (!sih->set_cor) {
status = twl_i2c_write(sih->module, buf,
sih->mask[line].isr_offset,
sih->bytes_ixr);
+ if (status < 0)
+ pr_warn("twl4030: write failed: %d\n",
+ status);
+ }
/*
* else COR=1 means read sufficed.
* (for most SIH modules...)