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staging: gpib: gpio: Return error value from gpib_register_driver() 

The function gpib_register_driver() can fail and does not return an
error value if it fails.

Return the error value if gpib_register_driver() fails. Add pr_err()
statement indicating the fail and also the error value.

Signed-off-by: Nihar Chaithanya <niharchaithanya@gmail.com>
Link: https://lore.kernel.org/r/20241230185633.175690-9-niharchaithanya@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
pull/1134/merge
Nihar Chaithanya 2024-12-31 00:26:28 +05:30 committed by Greg Kroah-Hartman
parent 10ca8c3b51
commit 908ff8d49e
1 changed files with 6 additions and 1 deletions
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7
drivers/staging/gpib/gpio/gpib_bitbang.c
View File

@ -1341,7 +1341,12 @@ return_to_local : bb_return_to_local,
static int __init bb_init_module(void)
{
gpib_register_driver(&bb_interface, THIS_MODULE);
int result = gpib_register_driver(&bb_interface, THIS_MODULE);
if (result) {
pr_err("gpib_bitbang: gpib_register_driver failed: error = %d\n", result);
return result;
}
dbg_printk(0, "module loaded with pin map \"%s\"%s\n",
pin_map, (sn7516x_used) ? " and SN7516x driver support" : "");