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isdn/gigaset: improve error handling querying firmware version
An out-of-place "OK" response to the "AT+GMR" (get firmware version) command turns out to be, more often than not, a delayed response to a previous command rather than an actual error, so continue waiting for the version number in that case. Signed-off-by: Tilman Schmidt <tilman@imap.cc> CC: stable <stable@kernel.org> Signed-off-by: David S. Miller <davem@davemloft.net>
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1 changed files with 3 additions and 1 deletions
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@ -190,6 +190,7 @@ struct reply_t gigaset_tab_nocid[] =
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ACT_INIT} },
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{RSP_OK, 121, 121, -1, 0, 0, {ACT_GOTVER,
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ACT_INIT} },
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{RSP_NONE, 121, 121, -1, 120, 0, {ACT_GETSTRING} },
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/* leave dle mode */
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{RSP_INIT, 0, 0, SEQ_DLE0, 201, 5, {0}, "^SDLE=0\r"},
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@ -1314,8 +1315,9 @@ static void do_action(int action, struct cardstate *cs,
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s = ev->ptr;
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if (!strcmp(s, "OK")) {
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/* OK without version string: assume old response */
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*p_genresp = 1;
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*p_resp_code = RSP_ERROR;
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*p_resp_code = RSP_NONE;
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break;
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}
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