4.19-stable review patch. If anyone has any objections, please let me know.
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From: Luis Chamberlain mcgrof@kernel.org
commit 5618cf031fecda63847cafd1091e7b8bd626cdb1 upstream.
We free the misc device string twice on rmmod; fix this. Without this we cannot remove the module without crashing.
Link: http://lkml.kernel.org/r/20181124050500.5257-1-mcgrof@kernel.org Signed-off-by: Luis Chamberlain mcgrof@kernel.org Reported-by: Randy Dunlap rdunlap@infradead.org Reviewed-by: Andrew Morton akpm@linux-foundation.org Cc: stable@vger.kernel.org [4.12+] Signed-off-by: Andrew Morton akpm@linux-foundation.org Signed-off-by: Linus Torvalds torvalds@linux-foundation.org Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org
--- lib/test_kmod.c | 1 - 1 file changed, 1 deletion(-)
--- a/lib/test_kmod.c +++ b/lib/test_kmod.c @@ -1214,7 +1214,6 @@ void unregister_test_dev_kmod(struct kmo
dev_info(test_dev->dev, "removing interface\n"); misc_deregister(&test_dev->misc_dev); - kfree(&test_dev->misc_dev.name);
mutex_unlock(&test_dev->config_mutex); mutex_unlock(&test_dev->trigger_mutex);