forked from luck/tmp_suning_uos_patched
9p: saving negative to unsigned char
Saving -EINVAL as unsigned char truncates the high bits and changes it into 234 instead of -22. This breaks the test for "if (ret == -EINVAL)" in parse_opts(). Signed-off-by: Dan Carpenter <error27@gmail.com> Signed-off-by: Eric Van Hensbergen <ericvh@gmail.com>
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@ -71,9 +71,10 @@ inline int p9_is_proto_dotu(struct p9_client *clnt)
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EXPORT_SYMBOL(p9_is_proto_dotu);
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/* Interpret mount option for protocol version */
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static unsigned char get_protocol_version(const substring_t *name)
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static int get_protocol_version(const substring_t *name)
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{
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unsigned char version = -EINVAL;
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int version = -EINVAL;
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if (!strncmp("9p2000", name->from, name->to-name->from)) {
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version = p9_proto_legacy;
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P9_DPRINTK(P9_DEBUG_9P, "Protocol version: Legacy\n");
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