From: Tomas Winkler <tomas.winkler@intel.com>
To: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: Alexander Usyskin <alexander.usyskin@intel.com>,
linux-kernel@vger.kernel.org,
Tomas Winkler <tomas.winkler@intel.com>
Subject: [char-misc-next] mei: bus: suppress sign-compare warnings
Date: Sun, 15 Jul 2018 14:41:18 +0300 [thread overview]
Message-ID: <20180715114118.7505-1-tomas.winkler@intel.com> (raw)
Comparison between signed and unsigned warnings
and associated type promotion may cause error
condition not be detected.
The type promotion issue in mei bus was addressed by two patches:
commit b40b3e9358fb ("mei: bus: type promotion bug in mei_nfc_if_version()")
commit cf1ed2c59b98 ("mei: bus: type promotion bug in mei_fwver()")
Now it is possible to suppress the warning, by adding proper
casting to move out of radar.
Signed-off-by: Tomas Winkler <tomas.winkler@intel.com>
---
drivers/misc/mei/bus-fixup.c | 6 +++---
1 file changed, 3 insertions(+), 3 deletions(-)
diff --git a/drivers/misc/mei/bus-fixup.c b/drivers/misc/mei/bus-fixup.c
index 2b8390447117..a6f41f96f2a1 100644
--- a/drivers/misc/mei/bus-fixup.c
+++ b/drivers/misc/mei/bus-fixup.c
@@ -181,7 +181,7 @@ static int mei_fwver(struct mei_cl_device *cldev)
ret = 0;
bytes_recv = __mei_cl_recv(cldev->cl, buf, sizeof(buf), 0,
MKHI_RCV_TIMEOUT);
- if (bytes_recv < 0 || bytes_recv < MKHI_FWVER_LEN(1)) {
+ if (bytes_recv < 0 || (size_t)bytes_recv < MKHI_FWVER_LEN(1)) {
/*
* Should be at least one version block,
* error out if nothing found
@@ -193,7 +193,7 @@ static int mei_fwver(struct mei_cl_device *cldev)
fwver = (struct mkhi_fw_ver *)req->data;
memset(cldev->bus->fw_ver, 0, sizeof(cldev->bus->fw_ver));
for (i = 0; i < MEI_MAX_FW_VER_BLOCKS; i++) {
- if (bytes_recv < MKHI_FWVER_LEN(i + 1))
+ if ((size_t)bytes_recv < MKHI_FWVER_LEN(i + 1))
break;
dev_dbg(&cldev->dev, "FW version%d %d:%d.%d.%d.%d\n",
i, fwver->ver[i].platform,
@@ -341,7 +341,7 @@ static int mei_nfc_if_version(struct mei_cl *cl,
ret = 0;
bytes_recv = __mei_cl_recv(cl, (u8 *)reply, if_version_length, 0, 0);
- if (bytes_recv < 0 || bytes_recv < if_version_length) {
+ if (bytes_recv < 0 || (size_t)bytes_recv < if_version_length) {
dev_err(bus->dev, "Could not read IF version\n");
ret = -EIO;
goto err;
--
2.14.4
reply other threads:[~2018-07-15 11:42 UTC|newest]
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