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Commit 38b227b0 authored by Sunil Paidimarri's avatar Sunil Paidimarri
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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: default avatarSunil Paidimarri <hisunil@codeaurora.org>
parent 3c7400dc

drivers/platform/msm/ipa/ipa_v2/ipa_debugfs.c

+2 −0
Original line number Diff line number Diff line
@@ -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;

}

drivers/platform/msm/ipa/ipa_v3/ipa_debugfs.c

+2 −0
Original line number Diff line number Diff line
@@ -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;

}