diff options
| author | Jean Delvare <jdelvare@suse.de> | 2010-10-21 11:48:47 +0200 |
|---|---|---|
| committer | Matthew Garrett <mjg@redhat.com> | 2010-10-21 16:10:49 +0200 |
| commit | aa13857f13c3d5535904781e264d8f9115e30438 (patch) | |
| tree | 88493bebeabb3a8d2595569ac3aec968577b4947 /drivers/platform | |
| parent | intel_pmic_gpio: fix off-by-one value range checking (diff) | |
| download | linux-aa13857f13c3d5535904781e264d8f9115e30438.tar.xz linux-aa13857f13c3d5535904781e264d8f9115e30438.zip | |
panasonic-laptop: Handle errors properly if they happen
acpi_pcc_retrieve_biosdata() returns success instead of error if
HKEY.SINF is invalid. Fix this.
Furthermore, if acpi_pcc_retrieve_biosdata() returns an error
during device addition, initialization is properly reverted but value
0 is returned, which means success. This would cause a crash when
later using or removing the device, so fix this too.
Signed-off-by: Jean Delvare <jdelvare@suse.de>
Cc: Harald Welte <laforge@gnumonks.org>
Cc: Bruno Premont <bonbons@linux-vserver.org>
Signed-off-by: Matthew Garrett <mjg@redhat.com>
Diffstat (limited to 'drivers/platform')
| -rw-r--r-- | drivers/platform/x86/panasonic-laptop.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/platform/x86/panasonic-laptop.c b/drivers/platform/x86/panasonic-laptop.c index b3b9e0458ae1..96dd34155bad 100644 --- a/drivers/platform/x86/panasonic-laptop.c +++ b/drivers/platform/x86/panasonic-laptop.c @@ -285,6 +285,7 @@ static int acpi_pcc_retrieve_biosdata(struct pcc_acpi *pcc, u32 *sinf) hkey = buffer.pointer; if (!hkey || (hkey->type != ACPI_TYPE_PACKAGE)) { ACPI_DEBUG_PRINT((ACPI_DB_ERROR, "Invalid HKEY.SINF\n")); + status = AE_ERROR; goto end; } @@ -596,6 +597,7 @@ static int acpi_pcc_hotkey_add(struct acpi_device *device) if (!acpi_pcc_retrieve_biosdata(pcc, pcc->sinf)) { ACPI_DEBUG_PRINT((ACPI_DB_ERROR, "Couldn't retrieve BIOS data\n")); + result = -EIO; goto out_input; } /* initialize backlight */ |