From: Hongling Zeng Date: Sun, 3 May 2026 09:30:36 +0000 (+0800) Subject: gpib: cb7210: Fix region leak when request_irq fails X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=5ad28496055858166eb2268344c8fda2c26d3561;p=thirdparty%2Fkernel%2Fstable.git gpib: cb7210: Fix region leak when request_irq fails When request_irq() fails, the region allocated by request_region() is not released. Fix this by calling release_region() before returning. Smatch warning: drivers/gpib/cb7210/cb7210.c:1068 cb_isa_attach() warn: 'config->ibbase' from __request_region() not released on lines: 1064. Fixes: 82e3508046f9 ("staging: gpib: cb7210 console messaging cleanup") Signed-off-by: Hongling Zeng Link: https://patch.msgid.link/20260503093036.283546-1-zenghongling@kylinos.cn Signed-off-by: Greg Kroah-Hartman --- diff --git a/drivers/gpib/cb7210/cb7210.c b/drivers/gpib/cb7210/cb7210.c index 6dd8637c5964b..05058bf2cd50b 100644 --- a/drivers/gpib/cb7210/cb7210.c +++ b/drivers/gpib/cb7210/cb7210.c @@ -1062,6 +1062,7 @@ static int cb_isa_attach(struct gpib_board *board, const struct gpib_board_confi // install interrupt handler if (request_irq(config->ibirq, cb7210_interrupt, isr_flags, DRV_NAME, board)) { dev_err(board->gpib_dev, "failed to obtain IRQ %d\n", config->ibirq); + release_region(nec7210_iobase(cb_priv), cb7210_iosize); return -EBUSY; } cb_priv->irq = config->ibirq;