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author | Alan Jenkins <alan-jenkins@tuffmail.co.uk> | 2009-12-03 07:44:53 (GMT) |
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committer | Len Brown <len.brown@intel.com> | 2009-12-09 20:54:30 (GMT) |
commit | fbe3d8942e8fd1e947e4d11a3e9e15675a1cac7e (patch) | |
tree | 59325f54e9f2d10d8bfea3a2a1ae5ca82d181c1d /drivers/ide | |
parent | 3c0eb510697dbbb53674c72544350624a04ab5b4 (diff) | |
download | linux-fsl-qoriq-fbe3d8942e8fd1e947e4d11a3e9e15675a1cac7e.tar.xz |
eeepc-laptop: Remove redundant NULL checks
The acpi device callbacks add, start, remove, suspend and resume can
never be called with a NULL acpi_device. Each callsite in acpi/scan.c
has to dereference the device in order to get the ops structure, e.g.
struct acpi_device *acpi_dev = to_acpi_device(dev);
struct acpi_driver *acpi_drv = acpi_dev->driver;
if (acpi_drv && acpi_drv->ops.suspend)
return acpi_drv->ops.suspend(acpi_dev, state);
Remove all checks for acpi_dev == NULL within these callbacks.
Also remove the checks for acpi_driver_data(acpi_dev) == NULL. None of
these checks could fail unless the driver does something strange
(which none of them do), the acpi core did something terribly wrong,
or we have a memory corruption issue. If this does happen then it's
best to dereference the pointer and crash noisily.
Signed-off-by: Alan Jenkins <alan-jenkins@tuffmail.co.uk>
Signed-off-by: Len Brown <len.brown@intel.com>
Diffstat (limited to 'drivers/ide')
0 files changed, 0 insertions, 0 deletions