From: Jiri Slaby Date: Sat, 10 Feb 2007 09:45:20 +0000 (-0800) Subject: [PATCH] Char: mxser_new, fix twice resource releasing X-Git-Url: http://git.cdn.openwrt.org/?a=commitdiff_plain;h=45257fa9a5070e4c0739af1f81848ad557472b40;p=openwrt%2Fstaging%2Fblogic.git [PATCH] Char: mxser_new, fix twice resource releasing Because brd->info is not NULLed, resources are released twice. NULL it in pci_remove function. Also take care of retval and releasing in pci_probe -- mxser_initbrd alreasy releases resource, do not do it again in fail path in probe function. Cc: Sergei Organov Signed-off-by: Jiri Slaby Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- diff --git a/drivers/char/mxser_new.c b/drivers/char/mxser_new.c index 042d1381ff6f..f078ddf48b79 100644 --- a/drivers/char/mxser_new.c +++ b/drivers/char/mxser_new.c @@ -2403,9 +2403,8 @@ static int __devinit mxser_initbrd(struct mxser_board *brd, brd->info->name, brd->irq); /* We hold resources, we need to release them. */ mxser_release_res(brd, pdev, 0); - return retval; } - return 0; + return retval; } static int __init mxser_get_ISA_conf(int cap, struct mxser_board *brd) @@ -2590,8 +2589,9 @@ static int __devinit mxser_probe(struct pci_dev *pdev, } /* mxser_initbrd will hook ISR. */ - if (mxser_initbrd(brd, pdev) < 0) - goto err_relvec; + retval = mxser_initbrd(brd, pdev); + if (retval) + goto err_null; for (i = 0; i < brd->info->nports; i++) tty_register_device(mxvar_sdriver, brd->idx + i, &pdev->dev); @@ -2599,10 +2599,9 @@ static int __devinit mxser_probe(struct pci_dev *pdev, pci_set_drvdata(pdev, brd); return 0; -err_relvec: - pci_release_region(pdev, 3); err_relio: pci_release_region(pdev, 2); +err_null: brd->info = NULL; err: return retval; @@ -2620,6 +2619,7 @@ static void __devexit mxser_remove(struct pci_dev *pdev) tty_unregister_device(mxvar_sdriver, brd->idx + i); mxser_release_res(brd, pdev, 1); + brd->info = NULL; } static struct pci_driver mxser_driver = {