clk/x86: pmc_atom: add kasprintf return value check

Browse source

The kasprintf() function returns NULL on memory allocation failure, but
the code in plt_clk_register() was not checking this return value. If
kasprintf fails, init.name would be NULL and could cause NULL pointer
dereference when clkdev_hw_create() uses it.

Add proper error checking for the kasprintf() return value and return
ERR_PTR(-ENOMEM) on failure.

Fixes: 1141d9d081 ("clk: x86: Add Atom PMC platform clocks")
Signed-off-by: longlong yan <yanlonglong@kylinos.cn>
Reviewed-by: Brian Masney <bmasney@redhat.com>
Signed-off-by: Brian Masney <bmasney@redhat.com>

...

This commit is contained in:

longlong yan 2026-07-14 14:51:32 +08:00 • committed by Brian Masney

parent 2a97ca25f7

commit 18e9d14cba

1 changed files with 3 additions and 0 deletions

Show all changes Ignore whitespace when comparing lines Ignore changes in amount of whitespace Ignore changes in whitespace at EOL

Download patch file Download diff file Expand all files Collapse all files

3

drivers/clk/x86/clk-pmc-atom.c

View file