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| author |   Miaoqian Lin <linmq006@gmail.com> | 2022-05-23 18:42:54 +0400 |
|---|---|---|
| committer |   Ulf Hansson <ulf.hansson@linaro.org> | 2022-07-12 12:25:33 +0200 |
| commit | b5899a3e2f783a27b268e38d37f9b24c71bddf45 (patch) | |
| tree | f2ade269f137a37c8a0fb95a65dec757f56cf0d7 | |
| parent | mmc: sdhci-brcmstb: Add ability to increase max clock rate for 72116b0 (diff) | |
| download | wireguard-linux-b5899a3e2f783a27b268e38d37f9b24c71bddf45.tar.xz wireguard-linux-b5899a3e2f783a27b268e38d37f9b24c71bddf45.zip | |
mmc: sdhci-of-esdhc: Fix refcount leak in esdhc_signal_voltage_switch
of_find_matching_node() returns a node pointer with refcount
incremented, we should use of_node_put() on it when not need anymore.
Add missing of_node_put() to avoid refcount leak.
of_node_put() checks null pointer.
Fixes: ea35645a3c66 ("mmc: sdhci-of-esdhc: add support for signal voltage switch")
Signed-off-by: Miaoqian Lin <linmq006@gmail.com>
Link: https://lore.kernel.org/r/20220523144255.10310-1-linmq006@gmail.com
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
| -rw-r--r-- | drivers/mmc/host/sdhci-of-esdhc.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/mmc/host/sdhci-of-esdhc.c b/drivers/mmc/host/sdhci-of-esdhc.c index d9dc41143bb3..8b3d8119f388 100644 --- a/drivers/mmc/host/sdhci-of-esdhc.c +++ b/drivers/mmc/host/sdhci-of-esdhc.c @@ -904,6 +904,7 @@ static int esdhc_signal_voltage_switch(struct mmc_host *mmc, scfg_node = of_find_matching_node(NULL, scfg_device_ids); if (scfg_node) scfg_base = of_iomap(scfg_node, 0); + of_node_put(scfg_node); if (scfg_base) { sdhciovselcr = SDHCIOVSELCR_TGLEN | SDHCIOVSELCR_VSELVAL; |