diff options
| author | Claudiu Beznea <claudiu.beznea@microchip.com> | 2021-09-30 13:09:28 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2021-11-18 21:16:49 +0300 |
| commit | a1e06f92b2dbc1898b127e867f4e715d85ba46ed (patch) | |
| tree | 16b2f771710a92ef94bbe3b9db9811e381def9dc /drivers/power | |
| parent | 9a8d7bdd5b5eec8821647219b82cdf1a5b43ebb2 (diff) | |
| download | linux-a1e06f92b2dbc1898b127e867f4e715d85ba46ed.tar.xz | |
power: reset: at91-reset: check properly the return value of devm_of_iomap
[ Upstream commit f558c8072c3461b65c12c0068b108f78cebc8246 ]
devm_of_iomap() returns error code or valid pointer. Check its return
value with IS_ERR().
Fixes: bd3127733f2c ("power: reset: at91-reset: use devm_of_iomap")
Reported-by: Cristian Birsan <cristian.birsan@microchip.com>
Signed-off-by: Claudiu Beznea <claudiu.beznea@microchip.com>
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Diffstat (limited to 'drivers/power')
| -rw-r--r-- | drivers/power/reset/at91-reset.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/drivers/power/reset/at91-reset.c b/drivers/power/reset/at91-reset.c index 026649409135..64def79d557a 100644 --- a/drivers/power/reset/at91-reset.c +++ b/drivers/power/reset/at91-reset.c @@ -193,7 +193,7 @@ static int __init at91_reset_probe(struct platform_device *pdev) return -ENOMEM; reset->rstc_base = devm_of_iomap(&pdev->dev, pdev->dev.of_node, 0, NULL); - if (!reset->rstc_base) { + if (IS_ERR(reset->rstc_base)) { dev_err(&pdev->dev, "Could not map reset controller address\n"); return -ENODEV; } @@ -203,7 +203,7 @@ static int __init at91_reset_probe(struct platform_device *pdev) for_each_matching_node_and_match(np, at91_ramc_of_match, &match) { reset->ramc_lpr = (u32)match->data; reset->ramc_base[idx] = devm_of_iomap(&pdev->dev, np, 0, NULL); - if (!reset->ramc_base[idx]) { + if (IS_ERR(reset->ramc_base[idx])) { dev_err(&pdev->dev, "Could not map ram controller address\n"); of_node_put(np); return -ENODEV; |