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[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 <osv@javad.com>
Signed-off-by: Jiri Slaby <jirislaby@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Jiri Slaby 2007-02-10 01:45:20 -08:00 committed by Linus Torvalds
parent 18b95576bc
commit 45257fa9a5
1 changed files with 6 additions and 6 deletions
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12
drivers/char/mxser_new.c
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@ -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 = {