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| author | Suren A. Chilingaryan <csa@suren.me> | 2016-03-02 20:05:25 +0100 |
|---|---|---|
| committer | Suren A. Chilingaryan <csa@suren.me> | 2016-03-02 20:05:25 +0100 |
| commit | 7e39a6c8ae5c3f95b3b2895c4ce8d858c7ad3b79 (patch) | |
| tree | 845144fdc9918a53b28fa9765f80579001df12a9 | |
| parent | 1120e8745ccd3e512fe2016c9e5092fcd378490a (diff) | |
| download | pcitool-7e39a6c8ae5c3f95b3b2895c4ce8d858c7ad3b79.tar.gz pcitool-7e39a6c8ae5c3f95b3b2895c4ce8d858c7ad3b79.tar.bz2 pcitool-7e39a6c8ae5c3f95b3b2895c4ce8d858c7ad3b79.tar.xz pcitool-7e39a6c8ae5c3f95b3b2895c4ce8d858c7ad3b79.zip | |
Minor change of logic in pcidriver_kmem_free_check() resulting in less complains while de-referencing the shared non-persistent kernel memory
| -rw-r--r-- | driver/kmem.c | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/driver/kmem.c b/driver/kmem.c index 47d1929..522f3bc 100644 --- a/driver/kmem.c +++ b/driver/kmem.c @@ -239,6 +239,9 @@ static int pcidriver_kmem_free_check(pcidriver_privdata_t *privdata, kmem_handle if (kmem_handle->flags&KMEM_FLAG_REUSE) return 0; + if (((kmem_entry->mode&KMEM_MODE_EXCLUSIVE)==0)&&(kmem_entry->mode&KMEM_MODE_COUNT)&&((kmem_handle->flags&KMEM_FLAG_EXCLUSIVE)==0)) + return 0; + if (kmem_entry->refs) { kmem_entry->mode += 1; mod_info("can't free referenced kmem_entry, refs = %lx\n", kmem_entry->refs); @@ -251,8 +254,6 @@ static int pcidriver_kmem_free_check(pcidriver_privdata_t *privdata, kmem_handle return -EBUSY; } - if (((kmem_entry->mode&KMEM_MODE_EXCLUSIVE)==0)&&(kmem_entry->mode&KMEM_MODE_COUNT)&&((kmem_handle->flags&KMEM_FLAG_EXCLUSIVE)==0)) - return 0; } else { if (kmem_entry->refs&KMEM_REF_HW) pcidriver_module_put(privdata); |