34 lines
1.1 KiB
Diff
34 lines
1.1 KiB
Diff
diff -up smartmontools-5.39.1/os_linux.cpp.megaraid smartmontools-5.39.1/os_linux.cpp
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--- smartmontools-5.39.1/os_linux.cpp.megaraid 2010-01-28 21:24:32.000000000 +0100
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+++ smartmontools-5.39.1/os_linux.cpp 2010-11-15 12:58:56.648181400 +0100
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@@ -1095,17 +1095,21 @@ bool linux_megaraid_device::megasas_cmd(
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pthru->cdb_len = cdbLen;
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pthru->timeout = 0;
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pthru->flags = MFI_FRAME_DIR_READ;
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- pthru->sge_count = 1;
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- pthru->data_xfer_len = dataLen;
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- pthru->sgl.sge32[0].phys_addr = (intptr_t)data;
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- pthru->sgl.sge32[0].length = (uint32_t)dataLen;
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+ if (dataLen > 0) {
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+ pthru->sge_count = 1;
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+ pthru->data_xfer_len = dataLen;
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+ pthru->sgl.sge32[0].phys_addr = (intptr_t)data;
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+ pthru->sgl.sge32[0].length = (uint32_t)dataLen;
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+ }
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memcpy(pthru->cdb, cdb, cdbLen);
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uio.host_no = m_hba;
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- uio.sge_count = 1;
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- uio.sgl_off = offsetof(struct megasas_pthru_frame, sgl);
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- uio.sgl[0].iov_base = data;
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- uio.sgl[0].iov_len = dataLen;
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+ if (dataLen > 0) {
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+ uio.sge_count = 1;
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+ uio.sgl_off = offsetof(struct megasas_pthru_frame, sgl);
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+ uio.sgl[0].iov_base = data;
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+ uio.sgl[0].iov_len = dataLen;
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+ }
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rc = 0;
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errno = 0;
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