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ALSA: riptide - proper handling of pci_register_driver for joystick 

We need to check returning error for pci_register_driver(&joystick_driver)

On failure, we should unregister formerly registered audio drivers

This also fixed the compiler warning :

  CC [M]  sound/pci/riptide/riptide.o
 sound/pci/riptide/riptide.c: In function ‘alsa_card_riptide_init’:
 sound/pci/riptide/riptide.c:2200: warning: ignoring return value of ‘__pci_register_driver’, declared with attribute warn_unused_result

Signed-off-by: Jaswinder Singh Rajput <jaswinderrajput@gmail.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
This commit is contained in:
Jaswinder Singh Rajput 2009-07-15 16:45:40 +05:30 committed by Takashi Iwai
parent c2a30d7118
commit cb65c8732a
1 changed files with 5 additions and 2 deletions
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7
sound/pci/riptide/riptide.c
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@ -2197,9 +2197,12 @@ static int __init alsa_card_riptide_init(void)
if (err < 0)
return err;
#if defined(SUPPORT_JOYSTICK)
pci_register_driver(&joystick_driver);
err = pci_register_driver(&joystick_driver);
/* On failure unregister formerly registered audio driver */
if (err < 0)
pci_unregister_driver(&driver);
#endif
return 0;
return err;
}
static void __exit alsa_card_riptide_exit(void)