parisc: Fix IRQ leak in LASI driver

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commit 37b0dc5e27 upstream.

When request_irq() succeeds but gsc_common_setup() fails later,
the IRQ is never released. Fix this by adding proper error handling
with goto labels to ensure resources are released in LIFO order.

Detected by Smatch:
  drivers/parisc/lasi.c:216 lasi_init_chip() warn: 'lasi->gsc_irq.irq'
from request_irq() not released on lines: 207.

Reported-by: kernel test robot <lkp@intel.com>
Reported-by: Dan Carpenter <error27@gmail.com>
Closes: https://lore.kernel.org/r/202604180957.4QdAIxP6-lkp@intel.com/
Signed-off-by: Hongling Zeng <zenghongling@kylinos.cn>
Cc: stable@vger.kernel.org
Signed-off-by: Helge Deller <deller@gmx.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

...

This commit is contained in:

Hongling Zeng 2026-05-03 12:17:44 +08:00 • committed by Greg Kroah-Hartman

parent 46662f7dc5

commit 4b8d4bab6d

1 changed files with 8 additions and 4 deletions

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drivers/parisc/lasi.c

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