diff options
| author | Sunil Paidimarri <hisunil@codeaurora.org> | 2016-10-07 14:32:54 -0700 |
|---|---|---|
| committer | Sunil Paidimarri <hisunil@codeaurora.org> | 2016-10-07 14:36:02 -0700 |
| commit | 38b227b0c22f5ee2ebe2432ff680dbeaabe58c69 (patch) | |
| tree | 7960e012f7dc83bf52f8bcec58d5bf37ec0f6a1b | |
| parent | 3c7400dc73db9b1455032e8d6e7679f27869cd75 (diff) | |
msm: ipa: Add guard around nat entries read
Add mutext lock protection around nat read
functino in debugfs to avoid nat table delete
during read.
Change-Id: Id38737dad70853ccd83685841d0c2498ee722ff2
CRs-Fixed: 1075605
Signed-off-by: Sunil Paidimarri <hisunil@codeaurora.org>
| -rw-r--r-- | drivers/platform/msm/ipa/ipa_v2/ipa_debugfs.c | 2 | ||||
| -rw-r--r-- | drivers/platform/msm/ipa/ipa_v3/ipa_debugfs.c | 2 |
2 files changed, 4 insertions, 0 deletions
diff --git a/drivers/platform/msm/ipa/ipa_v2/ipa_debugfs.c b/drivers/platform/msm/ipa/ipa_v2/ipa_debugfs.c index 0eab77d27760..50c387ec785d 100644 --- a/drivers/platform/msm/ipa/ipa_v2/ipa_debugfs.c +++ b/drivers/platform/msm/ipa/ipa_v2/ipa_debugfs.c @@ -1420,6 +1420,7 @@ static ssize_t ipa_read_nat4(struct file *file, u16 enable, tbl_entry, flag; u32 no_entrys = 0; + mutex_lock(&ipa_ctx->nat_mem.lock); value = ipa_ctx->nat_mem.public_ip_addr; pr_err( "Table IP Address:%d.%d.%d.%d\n", @@ -1573,6 +1574,7 @@ static ssize_t ipa_read_nat4(struct file *file, } } pr_err("Current No. Nat Entries: %d\n", no_entrys); + mutex_unlock(&ipa_ctx->nat_mem.lock); return 0; } diff --git a/drivers/platform/msm/ipa/ipa_v3/ipa_debugfs.c b/drivers/platform/msm/ipa/ipa_v3/ipa_debugfs.c index 3915f652d87b..25e5e3b74f26 100644 --- a/drivers/platform/msm/ipa/ipa_v3/ipa_debugfs.c +++ b/drivers/platform/msm/ipa/ipa_v3/ipa_debugfs.c @@ -1478,6 +1478,7 @@ static ssize_t ipa3_read_nat4(struct file *file, u16 enable, tbl_entry, flag; u32 no_entrys = 0; + mutex_lock(&ipa3_ctx->nat_mem.lock); value = ipa3_ctx->nat_mem.public_ip_addr; pr_err( "Table IP Address:%d.%d.%d.%d\n", @@ -1631,6 +1632,7 @@ static ssize_t ipa3_read_nat4(struct file *file, } } pr_err("Current No. Nat Entries: %d\n", no_entrys); + mutex_unlock(&ipa3_ctx->nat_mem.lock); return 0; } |