mirror of https://gitee.com/openkylin/linux.git
[PATCH] pktcdvd: Only return -EROFS when appropriate
When attempting to open the device for writing, only return -EROFS if the disc appears to be readable but not writable. Signed-off-by: Peter Osterlund <petero2@telia.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
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@ -1597,7 +1597,7 @@ static int pkt_probe_settings(struct pktcdvd_device *pd)
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}
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if (!pkt_writable_disc(pd, &di))
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return -ENXIO;
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return -EROFS;
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pd->type = di.erasable ? PACKET_CDRW : PACKET_CDR;
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@ -1609,7 +1609,7 @@ static int pkt_probe_settings(struct pktcdvd_device *pd)
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if (!pkt_writable_track(pd, &ti)) {
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printk("pktcdvd: can't write to this track\n");
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return -ENXIO;
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return -EROFS;
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}
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/*
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@ -1623,7 +1623,7 @@ static int pkt_probe_settings(struct pktcdvd_device *pd)
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}
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if (pd->settings.size > PACKET_MAX_SECTORS) {
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printk("pktcdvd: packet size is too big\n");
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return -ENXIO;
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return -EROFS;
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}
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pd->settings.fp = ti.fp;
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pd->offset = (be32_to_cpu(ti.track_start) << 2) & (pd->settings.size - 1);
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@ -1665,7 +1665,7 @@ static int pkt_probe_settings(struct pktcdvd_device *pd)
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break;
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default:
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printk("pktcdvd: unknown data mode\n");
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return 1;
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return -EROFS;
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}
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return 0;
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}
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@ -1876,7 +1876,7 @@ static int pkt_open_write(struct pktcdvd_device *pd)
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if ((ret = pkt_probe_settings(pd))) {
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VPRINTK("pktcdvd: %s failed probe\n", pd->name);
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return -EROFS;
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return ret;
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}
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if ((ret = pkt_set_write_settings(pd))) {
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