spi: hisi-kunpeng: Fix error checking

The function debugfs_create_dir returns ERR_PTR if an error occurs,
and the appropriate way to verify for errors is to use the inline
function IS_ERR. The patch will substitute the null-comparison with
IS_ERR.

Suggested-by: Ivan Orlov <ivan.orlov0322@gmail.com
Signed-off-by: Yeqi Fu <asuk4.q@gmail.com
Link: https://lore.kernel.org/r/20230518052515.368978-1-asuk4.q@gmail.com
Signed-off-by: Mark Brown <broonie@kernel.org
This commit is contained in:
Yeqi Fu 2023-05-18 13:25:15 +08:00 committed by Mark Brown
parent f2156989bf
commit 120e1aa2f2
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@ -169,7 +169,7 @@ static int hisi_spi_debugfs_init(struct hisi_spi *hs)
master = container_of(hs->dev, struct spi_controller, dev);
snprintf(name, 32, "hisi_spi%d", master->bus_num);
hs->debugfs = debugfs_create_dir(name, NULL);
if (!hs->debugfs)
if (IS_ERR(hs->debugfs))
return -ENOMEM;
hs->regset.regs = hisi_spi_regs;