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elan: Fix "garbage value" errors in elan_cmd_cb()

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libfprint/drivers/elan.c:351:4: warning: 2nd function call argument is an uninitialized value
                        dbg_buf(elandev->last_read, transfer->actual_length);
                        ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
libfprint/drivers/elan.c:46:5: note: expanded from macro 'dbg_buf'
    fp_dbg("%02x", buf[0]);                                  \
    ^~~~~~~~~~~~~~~~~~~~~~
../../../../../../Projects/jhbuild/libfprint/libfprint/fpi-log.h:52:16: note: expanded from macro 'fp_dbg'
 #define fp_dbg g_debug
               ^
libfprint/drivers/elan.c:351:4: warning: The left operand of '<<' is a garbage value
                        dbg_buf(elandev->last_read, transfer->actual_length);
                        ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
libfprint/drivers/elan.c:48:27: note: expanded from macro 'dbg_buf'
    fp_dbg("%04x", buf[0] << 8 | buf[1]);                    \
                   ~~~~~~ ^
libfprint/drivers/elan.c:351:4: warning: The left operand of '<<' is a garbage value
                        dbg_buf(elandev->last_read, transfer->actual_length);
                        ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
libfprint/drivers/elan.c:50:41: note: expanded from macro 'dbg_buf'
    fp_dbg("%04x... (%d bytes)", buf[0] << 8 | buf[1], len)
                                 ~~~~~~ ^
This commit is contained in:
Bastien Nocera 2018-12-12 16:56:33 +01:00
parent ce856efa25
commit 69fe7a1b8c
1 changed files with 1 additions and 1 deletions
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2
libfprint/drivers/elan.c
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@ -350,7 +350,7 @@ static void elan_cmd_cb(struct libusb_transfer *transfer,
} else if (transfer->endpoint & LIBUSB_ENDPOINT_IN) {
/* just finished receiving */
elandev->last_read = g_memdup(transfer->buffer, transfer->actual_length);
dbg_buf(elandev->last_read, transfer->actual_length);
dbg_buf(transfer->buffer, transfer->actual_length);
elan_cmd_done(ssm);
} else {
/* just finished sending */