Minki/linux
1
0
Fork 1
mirror of https://github.com/torvalds/linux.git synced 2024-11-25 21:51:40 +00:00
Code Issues Packages Projects Releases Wiki Activity

isa: Remove unnecessary checks

Browse Source 
The isa_dev->dev.platform_data is initialized with incoming
parameter isa_driver. After it isa_dev->dev.platform_data is
checked for NULL, but incoming parameter isa_driver is not
NULL since it is dereferenced many times before this check.

Found by Linux Verification Center (linuxtesting.org) with SVACE.

Signed-off-by: Vladislav Efanov <VEfanov@ispras.ru>
Acked-by: William Breathitt Gray <william.gray@linaro.org>
Link: https://lore.kernel.org/r/20230517125025.434005-1-VEfanov@ispras.ru
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Vladislav Efanov 2023-05-17 15:50:25 +03:00 committed by Greg Kroah-Hartman
parent 54aa5b6044
commit 6bea9ea6bb
1 changed files with 2 additions and 5 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

7
drivers/base/isa.c
View File

@ -149,11 +149,8 @@ int isa_register_driver(struct isa_driver *isa_driver, unsigned int ndev)
break;
}
if (isa_dev->dev.platform_data) {
isa_dev->next = isa_driver->devices;
isa_driver->devices = &isa_dev->dev;
} else
device_unregister(&isa_dev->dev);
isa_dev->next = isa_driver->devices;
isa_driver->devices = &isa_dev->dev;
}
if (!error && !isa_driver->devices)