| Message ID | 1467110308-22126-5-git-send-email-jonathanh@nvidia.com |
|---|---|
| State | Accepted |
| Headers | show |
diff --git a/drivers/soc/tegra/pmc.c b/drivers/soc/tegra/pmc.c index ed2b2c83e4eb..483d54623ec5 100644 --- a/drivers/soc/tegra/pmc.c +++ b/drivers/soc/tegra/pmc.c @@ -1504,6 +1504,8 @@ static int __init tegra_pmc_early_init(void) bool invert; u32 value; + mutex_init(&pmc->powergates_lock); + np = of_find_matching_node_and_match(NULL, tegra_pmc_match, &match); if (!np) { /* @@ -1548,8 +1550,6 @@ static int __init tegra_pmc_early_init(void) return -ENXIO; } - mutex_init(&pmc->powergates_lock); - if (np) { pmc->soc = match->data;
The mutex used by the PMC driver may not be initialised if early initialisation of the driver fails. If this does happen, then it could be possible for callers of the public PMC functions to still attempt to acquire the mutex. Fix this by initialising the mutex as soon as possible to ensure it will always be initialised. Signed-off-by: Jon Hunter <jonathanh@nvidia.com> --- drivers/soc/tegra/pmc.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-)