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| author | Suren A. Chilingaryan <csa@suren.me> | 2015-08-05 18:11:59 +0200 |
|---|---|---|
| committer | Suren A. Chilingaryan <csa@suren.me> | 2015-08-05 18:11:59 +0200 |
| commit | 7c5897933f4f64594602b2e38264af705c061754 (patch) | |
| tree | b6051387f6e2ff6c995141ba9bcb6960ecdd0b6a /pcilib/locking.c | |
| parent | f2e47ba725cc7ba477d3a788addc974f2b18d36f (diff) | |
| download | pcitool-7c5897933f4f64594602b2e38264af705c061754.tar.gz pcitool-7c5897933f4f64594602b2e38264af705c061754.tar.bz2 pcitool-7c5897933f4f64594602b2e38264af705c061754.tar.xz pcitool-7c5897933f4f64594602b2e38264af705c061754.zip | |
Use global locks to protect kmem allocation to prevent race while allocating simmultaneously locking kmem pages and any other type of kmem
Diffstat (limited to 'pcilib/locking.c')
| -rw-r--r-- | pcilib/locking.c | 6 |
1 files changed, 1 insertions, 5 deletions
diff --git a/pcilib/locking.c b/pcilib/locking.c index ffd05ce..7a32605 100644 --- a/pcilib/locking.c +++ b/pcilib/locking.c @@ -46,11 +46,10 @@ int pcilib_init_locking(pcilib_t* ctx) { } ctx->locks.locking = pcilib_get_lock(ctx, PCILIB_LOCK_FLAG_UNLOCKED, "locking"); - ctx->locks.mmap = pcilib_get_lock(ctx, PCILIB_LOCK_FLAG_UNLOCKED, "mmap"); pcilib_unlock_global(ctx); - if ((!ctx->locks.locking)||(!ctx->locks.mmap)) { + if ((!ctx->locks.locking)) { pcilib_error("Locking subsystem has failed to initialized mandatory global locks"); return PCILIB_ERROR_FAILED; } @@ -62,9 +61,6 @@ int pcilib_init_locking(pcilib_t* ctx) { * this functions destroy all locks and then free the kernel memory allocated for them */ void pcilib_free_locking(pcilib_t *ctx) { - if (ctx->locks.mmap) - pcilib_return_lock(ctx, PCILIB_LOCK_FLAGS_DEFAULT, ctx->locks.mmap); - if (ctx->locks.locking) pcilib_return_lock(ctx, PCILIB_LOCK_FLAGS_DEFAULT, ctx->locks.locking); |