diff options
| author |   Phil Reid <preid@electromag.com.au> | 2017-08-24 17:31:06 +0800 |
|---|---|---|
| committer |   Wolfram Sang <wsa@the-dreams.de> | 2017-10-28 23:43:10 +0200 |
| commit | e460617e85db8af533c9f70c9ab94d4fa111b379 (patch) | |
| tree | 7240467cc3a750d6877fc6ae8a42bd30416a065e /drivers/i2c | |
| parent | i2c: mux: pca954x: call request irq after adding mux segments (diff) | |
| download | linux-dev-e460617e85db8af533c9f70c9ab94d4fa111b379.tar.xz linux-dev-e460617e85db8af533c9f70c9ab94d4fa111b379.zip | |
i2c: mux: pca954x: Return error if irq_create_mapping fails
irq_create_mapping can return an error, report error to log and return.
Cleanup will occur in the probe function when an error is returned.
Suggested-by: Peter Rosin <peda@axentia.se>
Acked-by: Peter Rosin <peda@axentia.se>
Signed-off-by: Phil Reid <preid@electromag.com.au>
Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
Diffstat (limited to 'drivers/i2c')
| -rw-r--r-- | drivers/i2c/muxes/i2c-mux-pca954x.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/drivers/i2c/muxes/i2c-mux-pca954x.c b/drivers/i2c/muxes/i2c-mux-pca954x.c index 14aee65298f7..2ca068d8b92d 100644 --- a/drivers/i2c/muxes/i2c-mux-pca954x.c +++ b/drivers/i2c/muxes/i2c-mux-pca954x.c @@ -277,6 +277,10 @@ static int pca954x_irq_setup(struct i2c_mux_core *muxc) for (c = 0; c < data->chip->nchans; c++) { irq = irq_create_mapping(data->irq, c); + if (!irq) { + dev_err(&client->dev, "failed irq create map\n"); + return -EINVAL; + } irq_set_chip_data(irq, data); irq_set_chip_and_handler(irq, &pca954x_irq_chip, handle_simple_irq); |