From: Thomas Huth <thuth@linux.vnet.ibm.com>
To: qemu-devel@nongnu.org
Cc: alevy@redhat.com, armbru@redhat.com,
Thomas Huth <thuth@linux.vnet.ibm.com>
Subject: [Qemu-devel] [RFC PATCH] libcacard: Fix bug detected with 'smatch'
Date: Thu, 19 Mar 2015 15:53:50 +0100 [thread overview]
Message-ID: <1426776830-31961-1-git-send-email-thuth@linux.vnet.ibm.com> (raw)
'smatch' complains about two bugs and one style issue in card_7816.c:
libcacard/card_7816.c:273 vcard_apdu_set_length() warn: should this be a bitwise op?
libcacard/card_7816.c:295 vcard_apdu_set_length() warn: should this be a bitwise op?
libcacard/card_7816.c:661 vcard7816_vm_process_apdu() warn: inconsistent indenting
... and indeed, the code seems to be wrong here. Let's fix this
by using a bitwise OR instead of logical OR and by indenting
the code with the right level.
Signed-off-by: Thomas Huth <thuth@linux.vnet.ibm.com>
---
Please note that this is compile-tested only. I don't have a clue
about that libcacard stuff, so if you feel confident in this area,
please have a look whether this change really makes sense.
---
libcacard/card_7816.c | 6 +++---
1 files changed, 3 insertions(+), 3 deletions(-)
diff --git a/libcacard/card_7816.c b/libcacard/card_7816.c
index 814fa16..0f7a006 100644
--- a/libcacard/card_7816.c
+++ b/libcacard/card_7816.c
@@ -270,7 +270,7 @@ vcard_apdu_set_length(VCardAPDU *apdu)
}
/* calculate the first extended value. Could be either Le or Lc */
Le = (apdu->a_header->ah_body[0] << 8)
- || apdu->a_header->ah_body[1];
+ | apdu->a_header->ah_body[1];
if (L == 3) {
/* 2E extended, return data only */
/* zero maps to 65536 */
@@ -292,7 +292,7 @@ vcard_apdu_set_length(VCardAPDU *apdu)
if (L == Le+5) {
/* 4E extended, parameters and return data */
Le = (apdu->a_data[apdu->a_len-2] << 8)
- || apdu->a_data[apdu->a_len-1];
+ | apdu->a_data[apdu->a_len-1];
apdu->a_Le = Le ? Le : 65536;
return VCARD7816_STATUS_SUCCESS;
}
@@ -657,7 +657,7 @@ vcard7816_vm_process_apdu(VCard *card, VCardAPDU *apdu,
}
}
} else {
- status = vcard_emul_login(card, apdu->a_body, apdu->a_Lc);
+ status = vcard_emul_login(card, apdu->a_body, apdu->a_Lc);
*response = vcard_make_response(status);
}
}
--
1.7.1
next reply other threads:[~2015-03-19 15:05 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-03-19 14:53 Thomas Huth [this message]
2015-09-14 12:11 ` [Qemu-devel] [RFC PATCH] libcacard: Fix bug detected with 'smatch' Markus Armbruster
2015-09-14 12:46 ` Marc-André Lureau
2015-09-14 13:47 ` Markus Armbruster
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