diff options
author | Ben Hutchings <ben@decadent.org.uk> | 2011-11-16 04:52:11 (GMT) |
---|---|---|
committer | Mauro Carvalho Chehab <mchehab@redhat.com> | 2011-11-24 20:17:30 (GMT) |
commit | c8e57e1b766c2321aa76ee5e6878c69bd2313d62 (patch) | |
tree | e407c4ba1f325129d80ca30ebcdfab7271dc5195 /drivers/staging/media | |
parent | 9105b8b200410383d0854bbe237ee385d7d33ba6 (diff) | |
download | linux-fsl-qoriq-c8e57e1b766c2321aa76ee5e6878c69bd2313d62.tar.xz |
[media] staging: lirc_serial: Free resources on failure paths of lirc_serial_probe()
Failure to allocate the I/O region leaves the IRQ allocated.
A later failure leaves them both allocated.
Reported-by: Torsten Crass <torsten.crass@eBiology.de>
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Diffstat (limited to 'drivers/staging/media')
-rw-r--r-- | drivers/staging/media/lirc/lirc_serial.c | 19 |
1 files changed, 16 insertions, 3 deletions
diff --git a/drivers/staging/media/lirc/lirc_serial.c b/drivers/staging/media/lirc/lirc_serial.c index 8637631..d833772 100644 --- a/drivers/staging/media/lirc/lirc_serial.c +++ b/drivers/staging/media/lirc/lirc_serial.c @@ -875,11 +875,14 @@ static int __devinit lirc_serial_probe(struct platform_device *dev) ": or compile the serial port driver as module and\n"); printk(KERN_WARNING LIRC_DRIVER_NAME ": make sure this module is loaded first\n"); - return -EBUSY; + result = -EBUSY; + goto exit_free_irq; } - if (hardware_init_port() < 0) - return -EINVAL; + if (hardware_init_port() < 0) { + result = -EINVAL; + goto exit_release_region; + } /* Initialize pulse/space widths */ init_timing_params(duty_cycle, freq); @@ -911,6 +914,16 @@ static int __devinit lirc_serial_probe(struct platform_device *dev) dprintk("Interrupt %d, port %04x obtained\n", irq, io); return 0; + +exit_release_region: + if (iommap != 0) + release_mem_region(iommap, 8 << ioshift); + else + release_region(io, 8); +exit_free_irq: + free_irq(irq, (void *)&hardware); + + return result; } static int __devexit lirc_serial_remove(struct platform_device *dev) |