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staging: gasket: remove unnecessary NULL checks on calls from VFS

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Remove unneeded checks for NULL pointers in struct file pointers passed
from the VFS layer or the private_data that must have been properly set
at file open time.

Reported-by: Guenter Roeck <groeck@chromium.org>
Signed-off-by: Todd Poynor <toddpoynor@google.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Todd Poynor 2018-07-21 06:34:59 -07:00 committed by Greg Kroah-Hartman
parent a1978fa2d6
commit 99ccddf5af
1 changed files with 0 additions and 15 deletions
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15
drivers/staging/gasket/gasket_core.c
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@ -1587,11 +1587,6 @@ static int gasket_mmap(struct file *filp, struct vm_area_struct *vma)
int num_map_regions = 0;
enum do_map_region_status map_status;
if (!gasket_dev) {
gasket_nodev_error("Unable to retrieve device data");
trace_gasket_mmap_exit(-EINVAL);
return -EINVAL;
}
driver_desc = gasket_dev->internal_desc->driver_desc;
if (vma->vm_start & ~PAGE_MASK) {
@ -1785,17 +1780,7 @@ static long gasket_ioctl(struct file *filp, uint cmd, ulong arg)
void __user *argp = (void __user *)arg;
char path[256];
if (!filp)
return -ENODEV;
gasket_dev = (struct gasket_dev *)filp->private_data;
if (!gasket_dev) {
gasket_nodev_error(
"Unable to find Gasket structure for file %s",
d_path(&filp->f_path, path, 256));
return -ENODEV;
}
driver_desc = gasket_dev->internal_desc->driver_desc;
if (!driver_desc) {
gasket_log_error(