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authorMike Lockwood <lockwood@android.com>2011-03-14 10:33:22 -0400
committerMike Lockwood <lockwood@android.com>2011-03-14 10:33:22 -0400
commit90f5d75cf0502788fbc2fb49f366de40d5ffc164 (patch)
treed33bcd02acfe785b8568f550acb424a92ba5660f /media/mtp
parente976ff4a2203e5a01c9a1c1a018ba9e5ab7777f7 (diff)
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MtpDevice: Handle zero length packets in readResponse()
Bug: 3509060 Change-Id: I291eefeaa667688c9e6e75da74ec3025b84065e9 Signed-off-by: Mike Lockwood <lockwood@android.com>
Diffstat (limited to 'media/mtp')
-rw-r--r--media/mtp/MtpDevice.cpp4
1 files changed, 4 insertions, 0 deletions
diff --git a/media/mtp/MtpDevice.cpp b/media/mtp/MtpDevice.cpp
index 4ea8849..2e86159 100644
--- a/media/mtp/MtpDevice.cpp
+++ b/media/mtp/MtpDevice.cpp
@@ -819,6 +819,10 @@ MtpResponseCode MtpDevice::readResponse() {
return mResponse.getResponseCode();
}
int ret = mResponse.read(mRequestIn1);
+ // handle zero length packets, which might occur if the data transfer
+ // ends on a packet boundary
+ if (ret == 0)
+ ret = mResponse.read(mRequestIn1);
if (ret >= MTP_CONTAINER_HEADER_SIZE) {
mResponse.dump();
return mResponse.getResponseCode();